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Based on kernel version 3.13. Page generated on 2014-01-20 22:03 EST.

1	 
2	-----------------------------------------------------------------------------
3	1) This file is a supplement to arcnet.txt.  Please read that for general
4	   driver configuration help.
5	-----------------------------------------------------------------------------
6	2) This file is no longer Linux-specific.  It should probably be moved out of
7	   the kernel sources.  Ideas?
8	-----------------------------------------------------------------------------
9	
10	Because so many people (myself included) seem to have obtained ARCnet cards
11	without manuals, this file contains a quick introduction to ARCnet hardware,
12	some cabling tips, and a listing of all jumper settings I can find. Please
13	e-mail apenwarr@worldvisions.ca with any settings for your particular card,
14	or any other information you have!
15	
16	
17	INTRODUCTION TO ARCNET
18	----------------------
19	
20	ARCnet is a network type which works in a way similar to popular Ethernet
21	networks but which is also different in some very important ways.
22	
23	First of all, you can get ARCnet cards in at least two speeds: 2.5 Mbps
24	(slower than Ethernet) and 100 Mbps (faster than normal Ethernet).  In fact,
25	there are others as well, but these are less common.  The different hardware
26	types, as far as I'm aware, are not compatible and so you cannot wire a
27	100 Mbps card to a 2.5 Mbps card, and so on.  From what I hear, my driver does
28	work with 100 Mbps cards, but I haven't been able to verify this myself,
29	since I only have the 2.5 Mbps variety.  It is probably not going to saturate
30	your 100 Mbps card.  Stop complaining. :)
31	
32	You also cannot connect an ARCnet card to any kind of Ethernet card and
33	expect it to work.  
34	
35	There are two "types" of ARCnet - STAR topology and BUS topology.  This
36	refers to how the cards are meant to be wired together.  According to most
37	available documentation, you can only connect STAR cards to STAR cards and
38	BUS cards to BUS cards.  That makes sense, right?  Well, it's not quite
39	true; see below under "Cabling."
40	
41	Once you get past these little stumbling blocks, ARCnet is actually quite a
42	well-designed standard.  It uses something called "modified token passing"
43	which makes it completely incompatible with so-called "Token Ring" cards,
44	but which makes transfers much more reliable than Ethernet does.  In fact,
45	ARCnet will guarantee that a packet arrives safely at the destination, and
46	even if it can't possibly be delivered properly (ie. because of a cable
47	break, or because the destination computer does not exist) it will at least
48	tell the sender about it.
49	
50	Because of the carefully defined action of the "token", it will always make
51	a pass around the "ring" within a maximum length of time.  This makes it
52	useful for realtime networks.
53	
54	In addition, all known ARCnet cards have an (almost) identical programming
55	interface.  This means that with one ARCnet driver you can support any
56	card, whereas with Ethernet each manufacturer uses what is sometimes a
57	completely different programming interface, leading to a lot of different,
58	sometimes very similar, Ethernet drivers.  Of course, always using the same
59	programming interface also means that when high-performance hardware
60	facilities like PCI bus mastering DMA appear, it's hard to take advantage of
61	them.  Let's not go into that.
62	
63	One thing that makes ARCnet cards difficult to program for, however, is the
64	limit on their packet sizes; standard ARCnet can only send packets that are
65	up to 508 bytes in length.  This is smaller than the Internet "bare minimum"
66	of 576 bytes, let alone the Ethernet MTU of 1500.  To compensate, an extra
67	level of encapsulation is defined by RFC1201, which I call "packet
68	splitting," that allows "virtual packets" to grow as large as 64K each,
69	although they are generally kept down to the Ethernet-style 1500 bytes.
70	
71	For more information on the advantages and disadvantages (mostly the
72	advantages) of ARCnet networks, you might try the "ARCnet Trade Association"
73	WWW page:
74		http://www.arcnet.com
75	
76	
77	CABLING ARCNET NETWORKS
78	-----------------------
79	
80	This section was rewritten by 
81	        Vojtech Pavlik     <vojtech@suse.cz>
82	using information from several people, including:
83	        Avery Pennraun     <apenwarr@worldvisions.ca>
84	 	Stephen A. Wood    <saw@hallc1.cebaf.gov>
85	 	John Paul Morrison <jmorriso@bogomips.ee.ubc.ca>
86	 	Joachim Koenig     <jojo@repas.de>
87	and Avery touched it up a bit, at Vojtech's request.
88	
89	ARCnet (the classic 2.5 Mbps version) can be connected by two different
90	types of cabling: coax and twisted pair.  The other ARCnet-type networks
91	(100 Mbps TCNS and 320 kbps - 32 Mbps ARCnet Plus) use different types of
92	cabling (Type1, Fiber, C1, C4, C5).
93	
94	For a coax network, you "should" use 93 Ohm RG-62 cable.  But other cables
95	also work fine, because ARCnet is a very stable network. I personally use 75
96	Ohm TV antenna cable.
97	
98	Cards for coax cabling are shipped in two different variants: for BUS and
99	STAR network topologies.  They are mostly the same.  The only difference
100	lies in the hybrid chip installed.  BUS cards use high impedance output,
101	while STAR use low impedance.  Low impedance card (STAR) is electrically
102	equal to a high impedance one with a terminator installed.
103	
104	Usually, the ARCnet networks are built up from STAR cards and hubs.  There
105	are two types of hubs - active and passive.  Passive hubs are small boxes
106	with four BNC connectors containing four 47 Ohm resistors:
107	
108	   |         | wires
109	   R         + junction
110	-R-+-R-      R 47 Ohm resistors
111	   R
112	   |
113	
114	The shielding is connected together.  Active hubs are much more complicated;
115	they are powered and contain electronics to amplify the signal and send it
116	to other segments of the net.  They usually have eight connectors.  Active
117	hubs come in two variants - dumb and smart.  The dumb variant just
118	amplifies, but the smart one decodes to digital and encodes back all packets
119	coming through.  This is much better if you have several hubs in the net,
120	since many dumb active hubs may worsen the signal quality.
121	
122	And now to the cabling.  What you can connect together:
123	
124	1. A card to a card.  This is the simplest way of creating a 2-computer
125	   network.
126	
127	2. A card to a passive hub.  Remember that all unused connectors on the hub
128	   must be properly terminated with 93 Ohm (or something else if you don't
129	   have the right ones) terminators.
130	   	(Avery's note: oops, I didn't know that.  Mine (TV cable) works
131		anyway, though.)
132	
133	3. A card to an active hub.  Here is no need to terminate the unused
134	   connectors except some kind of aesthetic feeling.  But, there may not be
135	   more than eleven active hubs between any two computers.  That of course
136	   doesn't limit the number of active hubs on the network.
137	   
138	4. An active hub to another.
139	
140	5. An active hub to passive hub.
141	
142	Remember that you cannot connect two passive hubs together.  The power loss
143	implied by such a connection is too high for the net to operate reliably.
144	
145	An example of a typical ARCnet network:
146	
147	           R                     S - STAR type card              
148	    S------H--------A-------S    R - Terminator
149	           |        |            H - Hub                         
150	           |        |            A - Active hub                  
151	           |   S----H----S                                       
152	           S        |                                            
153	                    |                                            
154	                    S                                            
155	                                                                          
156	The BUS topology is very similar to the one used by Ethernet.  The only
157	difference is in cable and terminators: they should be 93 Ohm.  Ethernet
158	uses 50 Ohm impedance. You use T connectors to put the computers on a single
159	line of cable, the bus. You have to put terminators at both ends of the
160	cable. A typical BUS ARCnet network looks like:
161	
162	    RT----T------T------T------T------TR
163	     B    B      B      B      B      B
164	
165	  B - BUS type card
166	  R - Terminator
167	  T - T connector
168	
169	But that is not all! The two types can be connected together.  According to
170	the official documentation the only way of connecting them is using an active
171	hub:
172	
173	         A------T------T------TR
174	         |      B      B      B
175	     S---H---S
176	         |
177	         S
178	
179	The official docs also state that you can use STAR cards at the ends of
180	BUS network in place of a BUS card and a terminator:
181	
182	     S------T------T------S
183	            B      B
184	
185	But, according to my own experiments, you can simply hang a BUS type card
186	anywhere in middle of a cable in a STAR topology network.  And more - you
187	can use the bus card in place of any star card if you use a terminator. Then
188	you can build very complicated networks fulfilling all your needs!  An
189	example:
190	
191	                                  S
192	                                  |
193	           RT------T-------T------H------S
194	            B      B       B      |
195	                                  |       R
196	    S------A------T-------T-------A-------H------TR                    
197	           |      B       B       |       |      B                         
198	           |   S                 BT       |                                 
199	           |   |                  |  S----A-----S
200	    S------H---A----S             |       | 
201	           |   |      S------T----H---S   |
202	           S   S             B    R       S  
203	                                                               
204	A basically different cabling scheme is used with Twisted Pair cabling. Each
205	of the TP cards has two RJ (phone-cord style) connectors.  The cards are
206	then daisy-chained together using a cable connecting every two neighboring
207	cards.  The ends are terminated with RJ 93 Ohm terminators which plug into
208	the empty connectors of cards on the ends of the chain.  An example:
209	
210	          ___________   ___________
211	      _R_|_         _|_|_         _|_R_  
212	     |     |       |     |       |     |      
213	     |Card |       |Card |       |Card |     
214	     |_____|       |_____|       |_____|          
215	
216	
217	There are also hubs for the TP topology.  There is nothing difficult
218	involved in using them; you just connect a TP chain to a hub on any end or
219	even at both.  This way you can create almost any network configuration. 
220	The maximum of 11 hubs between any two computers on the net applies here as
221	well.  An example:
222	
223	    RP-------P--------P--------H-----P------P-----PR
224	                               |
225	      RP-----H--------P--------H-----P------PR
226	             |                 |
227	             PR                PR
228	
229	    R - RJ Terminator
230	    P - TP Card
231	    H - TP Hub
232	
233	Like any network, ARCnet has a limited cable length.  These are the maximum
234	cable lengths between two active ends (an active end being an active hub or
235	a STAR card).
236	
237			RG-62       93 Ohm up to 650 m
238			RG-59/U     75 Ohm up to 457 m
239			RG-11/U     75 Ohm up to 533 m
240			IBM Type 1 150 Ohm up to 200 m
241			IBM Type 3 100 Ohm up to 100 m
242	
243	The maximum length of all cables connected to a passive hub is limited to 65
244	meters for RG-62 cabling; less for others.  You can see that using passive
245	hubs in a large network is a bad idea. The maximum length of a single "BUS
246	Trunk" is about 300 meters for RG-62. The maximum distance between the two
247	most distant points of the net is limited to 3000 meters. The maximum length
248	of a TP cable between two cards/hubs is 650 meters.
249	
250	
251	SETTING THE JUMPERS
252	-------------------
253	
254	All ARCnet cards should have a total of four or five different settings:
255	
256	  - the I/O address:  this is the "port" your ARCnet card is on.  Probed
257	    values in the Linux ARCnet driver are only from 0x200 through 0x3F0. (If
258	    your card has additional ones, which is possible, please tell me.) This
259	    should not be the same as any other device on your system.  According to
260	    a doc I got from Novell, MS Windows prefers values of 0x300 or more,
261	    eating net connections on my system (at least) otherwise.  My guess is
262	    this may be because, if your card is at 0x2E0, probing for a serial port
263	    at 0x2E8 will reset the card and probably mess things up royally.
264		- Avery's favourite: 0x300.
265	
266	  - the IRQ: on  8-bit cards, it might be 2 (9), 3, 4, 5, or 7.
267	             on 16-bit cards, it might be 2 (9), 3, 4, 5, 7, or 10-15.
268	             
269	    Make sure this is different from any other card on your system.  Note
270	    that IRQ2 is the same as IRQ9, as far as Linux is concerned.  You can
271	    "cat /proc/interrupts" for a somewhat complete list of which ones are in
272	    use at any given time.  Here is a list of common usages from Vojtech
273	    Pavlik <vojtech@suse.cz>:
274	    	("Not on bus" means there is no way for a card to generate this
275		interrupt)
276		IRQ  0 - Timer 0 (Not on bus)
277		IRQ  1 - Keyboard (Not on bus)
278		IRQ  2 - IRQ Controller 2 (Not on bus, nor does interrupt the CPU)
279		IRQ  3 - COM2
280		IRQ  4 - COM1
281		IRQ  5 - FREE (LPT2 if you have it; sometimes COM3; maybe PLIP)
282		IRQ  6 - Floppy disk controller
283		IRQ  7 - FREE (LPT1 if you don't use the polling driver; PLIP) 
284		IRQ  8 - Realtime Clock Interrupt (Not on bus)
285		IRQ  9 - FREE (VGA vertical sync interrupt if enabled)
286		IRQ 10 - FREE
287		IRQ 11 - FREE
288		IRQ 12 - FREE
289		IRQ 13 - Numeric Coprocessor (Not on bus)
290		IRQ 14 - Fixed Disk Controller
291		IRQ 15 - FREE (Fixed Disk Controller 2 if you have it) 
292		
293		Note: IRQ 9 is used on some video cards for the "vertical retrace"
294		interrupt.  This interrupt would have been handy for things like
295		video games, as it occurs exactly once per screen refresh, but
296		unfortunately IBM cancelled this feature starting with the original
297		VGA and thus many VGA/SVGA cards do not support it.  For this
298		reason, no modern software uses this interrupt and it can almost
299		always be safely disabled, if your video card supports it at all.
300		
301		If your card for some reason CANNOT disable this IRQ (usually there
302		is a jumper), one solution would be to clip the printed circuit
303		contact on the board: it's the fourth contact from the left on the
304		back side.  I take no responsibility if you try this.
305	
306		- Avery's favourite: IRQ2 (actually IRQ9).  Watch that VGA, though.
307	
308	  - the memory address:  Unlike most cards, ARCnets use "shared memory" for
309	    copying buffers around.  Make SURE it doesn't conflict with any other
310	    used memory in your system!
311		A0000		- VGA graphics memory (ok if you don't have VGA)
312	        B0000		- Monochrome text mode
313	        C0000		\  One of these is your VGA BIOS - usually C0000.
314	        E0000		/
315	        F0000		- System BIOS
316	
317	    Anything less than 0xA0000 is, well, a BAD idea since it isn't above
318	    640k.
319		- Avery's favourite: 0xD0000
320	
321	  - the station address:  Every ARCnet card has its own "unique" network
322	    address from 0 to 255.  Unlike Ethernet, you can set this address
323	    yourself with a jumper or switch (or on some cards, with special
324	    software).  Since it's only 8 bits, you can only have 254 ARCnet cards
325	    on a network.  DON'T use 0 or 255, since these are reserved (although
326	    neat stuff will probably happen if you DO use them).  By the way, if you
327	    haven't already guessed, don't set this the same as any other ARCnet on
328	    your network!
329		- Avery's favourite:  3 and 4.  Not that it matters.
330	
331	  - There may be ETS1 and ETS2 settings.  These may or may not make a
332	    difference on your card (many manuals call them "reserved"), but are
333	    used to change the delays used when powering up a computer on the
334	    network.  This is only necessary when wiring VERY long range ARCnet
335	    networks, on the order of 4km or so; in any case, the only real
336	    requirement here is that all cards on the network with ETS1 and ETS2
337	    jumpers have them in the same position.  Chris Hindy <chrish@io.org>
338	    sent in a chart with actual values for this:
339		ET1	ET2	Response Time	Reconfiguration Time
340		---	---	-------------	--------------------
341		open	open	74.7us		840us
342		open	closed	283.4us		1680us
343		closed	open	561.8us		1680us
344		closed	closed	1118.6us	1680us
345	    
346	    Make sure you set ETS1 and ETS2 to the SAME VALUE for all cards on your
347	    network.
348	    
349	Also, on many cards (not mine, though) there are red and green LED's. 
350	Vojtech Pavlik <vojtech@suse.cz> tells me this is what they mean:
351		GREEN           RED             Status
352		-----		---		------
353		OFF             OFF             Power off
354		OFF             Short flashes   Cabling problems (broken cable or not
355						  terminated)
356		OFF (short)     ON              Card init
357		ON              ON              Normal state - everything OK, nothing
358						  happens
359		ON              Long flashes    Data transfer
360		ON              OFF             Never happens (maybe when wrong ID)
361	
362	
363	The following is all the specific information people have sent me about
364	their own particular ARCnet cards.  It is officially a mess, and contains
365	huge amounts of duplicated information.  I have no time to fix it.  If you
366	want to, PLEASE DO!  Just send me a 'diff -u' of all your changes.
367	
368	The model # is listed right above specifics for that card, so you should be
369	able to use your text viewer's "search" function to find the entry you want. 
370	If you don't KNOW what kind of card you have, try looking through the
371	various diagrams to see if you can tell.
372	
373	If your model isn't listed and/or has different settings, PLEASE PLEASE
374	tell me.  I had to figure mine out without the manual, and it WASN'T FUN!
375	
376	Even if your ARCnet model isn't listed, but has the same jumpers as another
377	model that is, please e-mail me to say so.
378	
379	Cards Listed in this file (in this order, mostly):
380	
381		Manufacturer	Model #			Bits
382		------------	-------			----
383		SMC		PC100			8
384		SMC		PC110			8
385		SMC		PC120			8
386		SMC		PC130			8
387		SMC		PC270E			8
388		SMC		PC500			16
389		SMC		PC500Longboard		16
390		SMC		PC550Longboard		16
391		SMC		PC600			16
392		SMC		PC710			8
393		SMC?		LCS-8830(-T)		8/16
394		Puredata	PDI507			8
395		CNet Tech	CN120-Series		8
396		CNet Tech	CN160-Series		16
397		Lantech?	UM9065L chipset		8
398		Acer		5210-003		8
399		Datapoint?	LAN-ARC-8		8
400		Topware		TA-ARC/10		8
401		Thomas-Conrad	500-6242-0097 REV A	8
402		Waterloo?	(C)1985 Waterloo Micro. 8
403		No Name		--			8/16
404		No Name		Taiwan R.O.C?		8
405		No Name		Model 9058		8
406		Tiara		Tiara Lancard?		8
407		
408	
409	** SMC = Standard Microsystems Corp.
410	** CNet Tech = CNet Technology, Inc.
411	
412	
413	Unclassified Stuff
414	------------------
415	  - Please send any other information you can find.
416	  
417	  - And some other stuff (more info is welcome!):
418	     From: root@ultraworld.xs4all.nl (Timo Hilbrink)
419	     To: apenwarr@foxnet.net (Avery Pennarun)
420	     Date: Wed, 26 Oct 1994 02:10:32 +0000 (GMT)
421	     Reply-To: timoh@xs4all.nl
422	
423	     [...parts deleted...]
424	
425	     About the jumpers: On my PC130 there is one more jumper, located near the
426	     cable-connector and it's for changing to star or bus topology; 
427	     closed: star - open: bus
428	     On the PC500 are some more jumper-pins, one block labeled with RX,PDN,TXI
429	     and another with ALE,LA17,LA18,LA19 these are undocumented..
430	
431	     [...more parts deleted...]
432	
433	     --- CUT ---
434	
435	
436	** Standard Microsystems Corp (SMC) **
437	PC100, PC110, PC120, PC130 (8-bit cards)
438	PC500, PC600 (16-bit cards)
439	---------------------------------
440	  - mainly from Avery Pennarun <apenwarr@worldvisions.ca>.  Values depicted
441	    are from Avery's setup.
442	  - special thanks to Timo Hilbrink <timoh@xs4all.nl> for noting that PC120,
443	    130, 500, and 600 all have the same switches as Avery's PC100. 
444	    PC500/600 have several extra, undocumented pins though. (?)
445	  - PC110 settings were verified by Stephen A. Wood <saw@cebaf.gov>
446	  - Also, the JP- and S-numbers probably don't match your card exactly.  Try
447	    to find jumpers/switches with the same number of settings - it's
448	    probably more reliable.
449	  
450	
451	     JP5		       [|]    :    :    :    :
452	(IRQ Setting)		      IRQ2  IRQ3 IRQ4 IRQ5 IRQ7
453			Put exactly one jumper on exactly one set of pins.
454	
455	
456	                          1  2   3  4  5  6   7  8  9 10
457	     S1                /----------------------------------\
458	(I/O and Memory        |  1  1 * 0  0  0  0 * 1  1  0  1  |
459	 addresses)            \----------------------------------/
460	                          |--|   |--------|   |--------|
461	                          (a)       (b)           (m)
462	                          
463	                WARNING.  It's very important when setting these which way
464	                you're holding the card, and which way you think is '1'!
465	                
466	                If you suspect that your settings are not being made
467			correctly, try reversing the direction or inverting the
468			switch positions.
469	
470			a: The first digit of the I/O address.
471				Setting		Value
472				-------		-----
473				00		0
474				01		1
475				10		2
476				11		3
477	
478			b: The second digit of the I/O address.
479				Setting		Value
480				-------		-----
481				0000		0
482				0001		1
483				0010		2
484				...		...
485				1110		E
486				1111		F
487	
488			The I/O address is in the form ab0.  For example, if
489			a is 0x2 and b is 0xE, the address will be 0x2E0.
490	
491			DO NOT SET THIS LESS THAN 0x200!!!!!
492	
493	
494			m: The first digit of the memory address.
495				Setting		Value
496				-------		-----
497				0000		0
498				0001		1
499				0010		2
500				...		...
501				1110		E
502				1111		F
503	
504			The memory address is in the form m0000.  For example, if
505			m is D, the address will be 0xD0000.
506	
507			DO NOT SET THIS TO C0000, F0000, OR LESS THAN A0000!
508	
509	                          1  2  3  4  5  6  7  8
510	     S2                /--------------------------\
511	(Station Address)      |  1  1  0  0  0  0  0  0  |
512	                       \--------------------------/
513	
514				Setting		Value
515				-------		-----
516				00000000	00
517				10000000	01
518				01000000	02
519				...
520				01111111	FE
521				11111111	FF
522	
523			Note that this is binary with the digits reversed!
524	
525			DO NOT SET THIS TO 0 OR 255 (0xFF)!
526	
527	
528	*****************************************************************************
529	
530	** Standard Microsystems Corp (SMC) **
531	PC130E/PC270E (8-bit cards)
532	---------------------------
533	  - from Juergen Seifert <seifert@htwm.de>
534	
535	
536	STANDARD MICROSYSTEMS CORPORATION (SMC) ARCNET(R)-PC130E/PC270E
537	===============================================================
538	
539	This description has been written by Juergen Seifert <seifert@htwm.de>
540	using information from the following Original SMC Manual 
541	
542	             "Configuration Guide for
543	             ARCNET(R)-PC130E/PC270
544	            Network Controller Boards
545	                Pub. # 900.044A
546	                   June, 1989"
547	
548	ARCNET is a registered trademark of the Datapoint Corporation
549	SMC is a registered trademark of the Standard Microsystems Corporation  
550	
551	The PC130E is an enhanced version of the PC130 board, is equipped with a 
552	standard BNC female connector for connection to RG-62/U coax cable.
553	Since this board is designed both for point-to-point connection in star
554	networks and for connection to bus networks, it is downwardly compatible 
555	with all the other standard boards designed for coax networks (that is,
556	the PC120, PC110 and PC100 star topology boards and the PC220, PC210 and 
557	PC200 bus topology boards).
558	
559	The PC270E is an enhanced version of the PC260 board, is equipped with two 
560	modular RJ11-type jacks for connection to twisted pair wiring.
561	It can be used in a star or a daisy-chained network.
562	
563	
564	         8 7 6 5 4 3 2 1
565	    ________________________________________________________________
566	   |   |       S1        |                                          |
567	   |   |_________________|                                          |
568	   |    Offs|Base |I/O Addr                                         |
569	   |     RAM Addr |                                              ___|
570	   |         ___  ___                                       CR3 |___|
571	   |        |   \/   |                                      CR4 |___|
572	   |        |  PROM  |                                           ___|
573	   |        |        |                                        N |   | 8
574	   |        | SOCKET |                                        o |   | 7
575	   |        |________|                                        d |   | 6
576	   |                   ___________________                    e |   | 5
577	   |                  |                   |                   A | S | 4
578	   |       |oo| EXT2  |                   |                   d | 2 | 3
579	   |       |oo| EXT1  |       SMC         |                   d |   | 2
580	   |       |oo| ROM   |      90C63        |                   r |___| 1
581	   |       |oo| IRQ7  |                   |               |o|  _____|
582	   |       |oo| IRQ5  |                   |               |o| | J1  |
583	   |       |oo| IRQ4  |                   |              STAR |_____|
584	   |       |oo| IRQ3  |                   |                   | J2  |
585	   |       |oo| IRQ2  |___________________|                   |_____|
586	   |___                                               ______________|
587	       |                                             |
588	       |_____________________________________________|
589	
590	Legend:
591	
592	SMC 90C63	ARCNET Controller / Transceiver /Logic
593	S1	1-3:	I/O Base Address Select
594		4-6:	Memory Base Address Select
595		7-8:	RAM Offset Select
596	S2	1-8:	Node ID Select
597	EXT		Extended Timeout Select
598	ROM		ROM Enable Select
599	STAR		Selected - Star Topology	(PC130E only)
600			Deselected - Bus Topology	(PC130E only)
601	CR3/CR4		Diagnostic LEDs
602	J1		BNC RG62/U Connector		(PC130E only)
603	J1		6-position Telephone Jack	(PC270E only)
604	J2		6-position Telephone Jack	(PC270E only)
605	
606	Setting one of the switches to Off/Open means "1", On/Closed means "0".
607	
608	
609	Setting the Node ID
610	-------------------
611	
612	The eight switches in group S2 are used to set the node ID.
613	These switches work in a way similar to the PC100-series cards; see that
614	entry for more information.
615	
616	
617	Setting the I/O Base Address
618	----------------------------
619	
620	The first three switches in switch group S1 are used to select one
621	of eight possible I/O Base addresses using the following table
622	
623	
624	   Switch | Hex I/O
625	   1 2 3  | Address
626	   -------|--------
627	   0 0 0  |  260
628	   0 0 1  |  290
629	   0 1 0  |  2E0  (Manufacturer's default)
630	   0 1 1  |  2F0
631	   1 0 0  |  300
632	   1 0 1  |  350
633	   1 1 0  |  380
634	   1 1 1  |  3E0
635	
636	
637	Setting the Base Memory (RAM) buffer Address
638	--------------------------------------------
639	
640	The memory buffer requires 2K of a 16K block of RAM. The base of this
641	16K block can be located in any of eight positions.
642	Switches 4-6 of switch group S1 select the Base of the 16K block.
643	Within that 16K address space, the buffer may be assigned any one of four 
644	positions, determined by the offset, switches 7 and 8 of group S1.
645	
646	   Switch     | Hex RAM | Hex ROM
647	   4 5 6  7 8 | Address | Address *)
648	   -----------|---------|-----------
649	   0 0 0  0 0 |  C0000  |  C2000
650	   0 0 0  0 1 |  C0800  |  C2000
651	   0 0 0  1 0 |  C1000  |  C2000
652	   0 0 0  1 1 |  C1800  |  C2000
653	              |         |
654	   0 0 1  0 0 |  C4000  |  C6000
655	   0 0 1  0 1 |  C4800  |  C6000
656	   0 0 1  1 0 |  C5000  |  C6000
657	   0 0 1  1 1 |  C5800  |  C6000
658	              |         |
659	   0 1 0  0 0 |  CC000  |  CE000
660	   0 1 0  0 1 |  CC800  |  CE000
661	   0 1 0  1 0 |  CD000  |  CE000
662	   0 1 0  1 1 |  CD800  |  CE000
663	              |         |
664	   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
665	   0 1 1  0 1 |  D0800  |  D2000
666	   0 1 1  1 0 |  D1000  |  D2000
667	   0 1 1  1 1 |  D1800  |  D2000
668	              |         |
669	   1 0 0  0 0 |  D4000  |  D6000
670	   1 0 0  0 1 |  D4800  |  D6000
671	   1 0 0  1 0 |  D5000  |  D6000
672	   1 0 0  1 1 |  D5800  |  D6000
673	              |         |
674	   1 0 1  0 0 |  D8000  |  DA000
675	   1 0 1  0 1 |  D8800  |  DA000
676	   1 0 1  1 0 |  D9000  |  DA000
677	   1 0 1  1 1 |  D9800  |  DA000
678	              |         |
679	   1 1 0  0 0 |  DC000  |  DE000
680	   1 1 0  0 1 |  DC800  |  DE000
681	   1 1 0  1 0 |  DD000  |  DE000
682	   1 1 0  1 1 |  DD800  |  DE000
683	              |         |
684	   1 1 1  0 0 |  E0000  |  E2000
685	   1 1 1  0 1 |  E0800  |  E2000
686	   1 1 1  1 0 |  E1000  |  E2000
687	   1 1 1  1 1 |  E1800  |  E2000
688	  
689	*) To enable the 8K Boot PROM install the jumper ROM.
690	   The default is jumper ROM not installed.
691	
692	
693	Setting the Timeouts and Interrupt
694	----------------------------------
695	
696	The jumpers labeled EXT1 and EXT2 are used to determine the timeout 
697	parameters. These two jumpers are normally left open.
698	
699	To select a hardware interrupt level set one (only one!) of the jumpers
700	IRQ2, IRQ3, IRQ4, IRQ5, IRQ7. The Manufacturer's default is IRQ2.
701	 
702	
703	Configuring the PC130E for Star or Bus Topology
704	-----------------------------------------------
705	
706	The single jumper labeled STAR is used to configure the PC130E board for 
707	star or bus topology.
708	When the jumper is installed, the board may be used in a star network, when 
709	it is removed, the board can be used in a bus topology.
710	
711	
712	Diagnostic LEDs
713	---------------
714	
715	Two diagnostic LEDs are visible on the rear bracket of the board.
716	The green LED monitors the network activity: the red one shows the
717	board activity:
718	
719	 Green  | Status               Red      | Status
720	 -------|-------------------   ---------|-------------------
721	  on    | normal activity      flash/on | data transfer
722	  blink | reconfiguration      off      | no data transfer;
723	  off   | defective board or            | incorrect memory or
724	        | node ID is zero               | I/O address
725	
726	
727	*****************************************************************************
728	
729	** Standard Microsystems Corp (SMC) **
730	PC500/PC550 Longboard (16-bit cards)
731	-------------------------------------
732	  - from Juergen Seifert <seifert@htwm.de>
733	
734	
735	STANDARD MICROSYSTEMS CORPORATION (SMC) ARCNET-PC500/PC550 Long Board
736	=====================================================================
737	
738	Note: There is another Version of the PC500 called Short Version, which 
739	      is different in hard- and software! The most important differences
740	      are:
741	      - The long board has no Shared memory.
742	      - On the long board the selection of the interrupt is done by binary
743	        coded switch, on the short board directly by jumper.
744	        
745	[Avery's note: pay special attention to that: the long board HAS NO SHARED
746	MEMORY.  This means the current Linux-ARCnet driver can't use these cards. 
747	I have obtained a PC500Longboard and will be doing some experiments on it in
748	the future, but don't hold your breath.  Thanks again to Juergen Seifert for
749	his advice about this!]
750	
751	This description has been written by Juergen Seifert <seifert@htwm.de>
752	using information from the following Original SMC Manual 
753	
754	             "Configuration Guide for
755	             SMC ARCNET-PC500/PC550
756	         Series Network Controller Boards
757	             Pub. # 900.033 Rev. A
758	                November, 1989"
759	
760	ARCNET is a registered trademark of the Datapoint Corporation
761	SMC is a registered trademark of the Standard Microsystems Corporation  
762	
763	The PC500 is equipped with a standard BNC female connector for connection
764	to RG-62/U coax cable.
765	The board is designed both for point-to-point connection in star networks
766	and for connection to bus networks.
767	
768	The PC550 is equipped with two modular RJ11-type jacks for connection
769	to twisted pair wiring.
770	It can be used in a star or a daisy-chained (BUS) network.
771	
772	       1 
773	       0 9 8 7 6 5 4 3 2 1     6 5 4 3 2 1
774	    ____________________________________________________________________
775	   < |         SW1         | |     SW2     |                            |
776	   > |_____________________| |_____________|                            |
777	   <   IRQ    |I/O Addr                                                 |
778	   >                                                                 ___|
779	   <                                                            CR4 |___|
780	   >                                                            CR3 |___|
781	   <                                                                 ___|
782	   >                                                              N |   | 8
783	   <                                                              o |   | 7
784	   >                                                              d | S | 6
785	   <                                                              e | W | 5
786	   >                                                              A | 3 | 4
787	   <                                                              d |   | 3
788	   >                                                              d |   | 2
789	   <                                                              r |___| 1
790	   >                                                        |o|    _____|
791	   <                                                        |o|   | J1  |
792	   >  3 1                                                   JP6   |_____|
793	   < |o|o| JP2                                                    | J2  |
794	   > |o|o|                                                        |_____|
795	   <  4 2__                                               ______________|
796	   >    |  |                                             |
797	   <____|  |_____________________________________________|
798	
799	Legend:
800	
801	SW1	1-6:	I/O Base Address Select
802		7-10:	Interrupt Select
803	SW2	1-6:	Reserved for Future Use
804	SW3	1-8:	Node ID Select
805	JP2	1-4:	Extended Timeout Select
806	JP6		Selected - Star Topology	(PC500 only)
807			Deselected - Bus Topology	(PC500 only)
808	CR3	Green	Monitors Network Activity
809	CR4	Red	Monitors Board Activity
810	J1		BNC RG62/U Connector		(PC500 only)
811	J1		6-position Telephone Jack	(PC550 only)
812	J2		6-position Telephone Jack	(PC550 only)
813	
814	Setting one of the switches to Off/Open means "1", On/Closed means "0".
815	
816	
817	Setting the Node ID
818	-------------------
819	
820	The eight switches in group SW3 are used to set the node ID. Each node
821	attached to the network must have an unique node ID which must be 
822	different from 0.
823	Switch 1 serves as the least significant bit (LSB).
824	
825	The node ID is the sum of the values of all switches set to "1"  
826	These values are:
827	
828	    Switch | Value
829	    -------|-------
830	      1    |   1
831	      2    |   2
832	      3    |   4
833	      4    |   8
834	      5    |  16
835	      6    |  32
836	      7    |  64
837	      8    | 128
838	
839	Some Examples:
840	
841	    Switch         | Hex     | Decimal 
842	   8 7 6 5 4 3 2 1 | Node ID | Node ID
843	   ----------------|---------|---------
844	   0 0 0 0 0 0 0 0 |    not allowed
845	   0 0 0 0 0 0 0 1 |    1    |    1 
846	   0 0 0 0 0 0 1 0 |    2    |    2
847	   0 0 0 0 0 0 1 1 |    3    |    3
848	       . . .       |         |
849	   0 1 0 1 0 1 0 1 |   55    |   85
850	       . . .       |         |
851	   1 0 1 0 1 0 1 0 |   AA    |  170
852	       . . .       |         |  
853	   1 1 1 1 1 1 0 1 |   FD    |  253
854	   1 1 1 1 1 1 1 0 |   FE    |  254
855	   1 1 1 1 1 1 1 1 |   FF    |  255 
856	
857	
858	Setting the I/O Base Address
859	----------------------------
860	
861	The first six switches in switch group SW1 are used to select one
862	of 32 possible I/O Base addresses using the following table
863	
864	   Switch       | Hex I/O
865	   6 5  4 3 2 1 | Address
866	   -------------|--------
867	   0 1  0 0 0 0 |  200
868	   0 1  0 0 0 1 |  210
869	   0 1  0 0 1 0 |  220
870	   0 1  0 0 1 1 |  230
871	   0 1  0 1 0 0 |  240
872	   0 1  0 1 0 1 |  250
873	   0 1  0 1 1 0 |  260
874	   0 1  0 1 1 1 |  270
875	   0 1  1 0 0 0 |  280
876	   0 1  1 0 0 1 |  290
877	   0 1  1 0 1 0 |  2A0
878	   0 1  1 0 1 1 |  2B0
879	   0 1  1 1 0 0 |  2C0
880	   0 1  1 1 0 1 |  2D0
881	   0 1  1 1 1 0 |  2E0 (Manufacturer's default)
882	   0 1  1 1 1 1 |  2F0
883	   1 1  0 0 0 0 |  300
884	   1 1  0 0 0 1 |  310
885	   1 1  0 0 1 0 |  320
886	   1 1  0 0 1 1 |  330
887	   1 1  0 1 0 0 |  340
888	   1 1  0 1 0 1 |  350
889	   1 1  0 1 1 0 |  360
890	   1 1  0 1 1 1 |  370
891	   1 1  1 0 0 0 |  380
892	   1 1  1 0 0 1 |  390
893	   1 1  1 0 1 0 |  3A0
894	   1 1  1 0 1 1 |  3B0
895	   1 1  1 1 0 0 |  3C0
896	   1 1  1 1 0 1 |  3D0
897	   1 1  1 1 1 0 |  3E0
898	   1 1  1 1 1 1 |  3F0
899	
900	
901	Setting the Interrupt
902	---------------------
903	
904	Switches seven through ten of switch group SW1 are used to select the 
905	interrupt level. The interrupt level is binary coded, so selections 
906	from 0 to 15 would be possible, but only the following eight values will
907	be supported: 3, 4, 5, 7, 9, 10, 11, 12.
908	
909	   Switch   | IRQ
910	   10 9 8 7 | 
911	   ---------|-------- 
912	    0 0 1 1 |  3
913	    0 1 0 0 |  4
914	    0 1 0 1 |  5
915	    0 1 1 1 |  7
916	    1 0 0 1 |  9 (=2) (default)
917	    1 0 1 0 | 10
918	    1 0 1 1 | 11
919	    1 1 0 0 | 12
920	
921	
922	Setting the Timeouts 
923	--------------------
924	
925	The two jumpers JP2 (1-4) are used to determine the timeout parameters. 
926	These two jumpers are normally left open.
927	Refer to the COM9026 Data Sheet for alternate configurations.
928	
929	
930	Configuring the PC500 for Star or Bus Topology
931	----------------------------------------------
932	
933	The single jumper labeled JP6 is used to configure the PC500 board for 
934	star or bus topology.
935	When the jumper is installed, the board may be used in a star network, when 
936	it is removed, the board can be used in a bus topology.
937	
938	
939	Diagnostic LEDs
940	---------------
941	
942	Two diagnostic LEDs are visible on the rear bracket of the board.
943	The green LED monitors the network activity: the red one shows the
944	board activity:
945	
946	 Green  | Status               Red      | Status
947	 -------|-------------------   ---------|-------------------
948	  on    | normal activity      flash/on | data transfer
949	  blink | reconfiguration      off      | no data transfer;
950	  off   | defective board or            | incorrect memory or
951	        | node ID is zero               | I/O address
952	
953	
954	*****************************************************************************
955	
956	** SMC **
957	PC710 (8-bit card)
958	------------------
959	  - from J.S. van Oosten <jvoosten@compiler.tdcnet.nl>
960	  
961	Note: this data is gathered by experimenting and looking at info of other
962	cards. However, I'm sure I got 99% of the settings right.
963	
964	The SMC710 card resembles the PC270 card, but is much more basic (i.e. no
965	LEDs, RJ11 jacks, etc.) and 8 bit. Here's a little drawing:
966	
967	    _______________________________________   
968	   | +---------+  +---------+              |____
969	   | |   S2    |  |   S1    |              |
970	   | +---------+  +---------+              |
971	   |                                       |
972	   |  +===+    __                          |
973	   |  | R |   |  | X-tal                 ###___
974	   |  | O |   |__|                      ####__'|
975	   |  | M |    ||                        ###
976	   |  +===+                                |
977	   |                                       |
978	   |   .. JP1   +----------+               |
979	   |   ..       | big chip |               |   
980	   |   ..       |  90C63   |               |
981	   |   ..       |          |               |
982	   |   ..       +----------+               |
983	    -------                     -----------
984	           |||||||||||||||||||||
985	
986	The row of jumpers at JP1 actually consists of 8 jumpers, (sometimes
987	labelled) the same as on the PC270, from top to bottom: EXT2, EXT1, ROM,
988	IRQ7, IRQ5, IRQ4, IRQ3, IRQ2 (gee, wonder what they would do? :-) )
989	
990	S1 and S2 perform the same function as on the PC270, only their numbers
991	are swapped (S1 is the nodeaddress, S2 sets IO- and RAM-address).
992	
993	I know it works when connected to a PC110 type ARCnet board.
994	
995		
996	*****************************************************************************
997	
998	** Possibly SMC **
999	LCS-8830(-T) (8 and 16-bit cards)
1000	---------------------------------
1001	  - from Mathias Katzer <mkatzer@HRZ.Uni-Bielefeld.DE>
1002	  - Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl> says the
1003	    LCS-8830 is slightly different from LCS-8830-T.  These are 8 bit, BUS
1004	    only (the JP0 jumper is hardwired), and BNC only.
1005		
1006	This is a LCS-8830-T made by SMC, I think ('SMC' only appears on one PLCC,
1007	nowhere else, not even on the few Xeroxed sheets from the manual).
1008	
1009	SMC ARCnet Board Type LCS-8830-T
1010	
1011	   ------------------------------------
1012	  |                                    |
1013	  |              JP3 88  8 JP2         |
1014	  |       #####      | \               |
1015	  |       #####    ET1 ET2          ###|
1016	  |                              8  ###|
1017	  |  U3   SW 1                  JP0 ###|  Phone Jacks
1018	  |  --                             ###|
1019	  | |  |                               |
1020	  | |  |   SW2                         |
1021	  | |  |                               |
1022	  | |  |  #####                        |
1023	  |  --   #####                       ####  BNC Connector 
1024	  |                                   ####
1025	  |   888888 JP1                       |
1026	  |   234567                           |
1027	   --                           -------
1028	     |||||||||||||||||||||||||||
1029	      --------------------------
1030	
1031	
1032	SW1: DIP-Switches for Station Address
1033	SW2: DIP-Switches for Memory Base and I/O Base addresses
1034	
1035	JP0: If closed, internal termination on (default open)
1036	JP1: IRQ Jumpers
1037	JP2: Boot-ROM enabled if closed
1038	JP3: Jumpers for response timeout
1039	 
1040	U3: Boot-ROM Socket          
1041	
1042	
1043	ET1 ET2     Response Time     Idle Time    Reconfiguration Time
1044	
1045	               78                86               840
1046	 X            285               316              1680
1047	     X        563               624              1680
1048	 X   X       1130              1237              1680
1049	
1050	(X means closed jumper)
1051	
1052	(DIP-Switch downwards means "0")
1053	
1054	The station address is binary-coded with SW1.
1055	
1056	The I/O base address is coded with DIP-Switches 6,7 and 8 of SW2:
1057	
1058	Switches        Base
1059	678             Address
1060	000		260-26f
1061	100		290-29f
1062	010		2e0-2ef
1063	110		2f0-2ff
1064	001		300-30f
1065	101		350-35f
1066	011		380-38f
1067	111 		3e0-3ef
1068	
1069	
1070	DIP Switches 1-5 of SW2 encode the RAM and ROM Address Range:
1071	
1072	Switches        RAM           ROM
1073	12345           Address Range  Address Range
1074	00000		C:0000-C:07ff	C:2000-C:3fff
1075	10000		C:0800-C:0fff
1076	01000		C:1000-C:17ff
1077	11000		C:1800-C:1fff
1078	00100		C:4000-C:47ff	C:6000-C:7fff
1079	10100		C:4800-C:4fff
1080	01100		C:5000-C:57ff 
1081	11100		C:5800-C:5fff
1082	00010		C:C000-C:C7ff	C:E000-C:ffff
1083	10010		C:C800-C:Cfff
1084	01010		C:D000-C:D7ff
1085	11010		C:D800-C:Dfff
1086	00110		D:0000-D:07ff	D:2000-D:3fff
1087	10110		D:0800-D:0fff
1088	01110		D:1000-D:17ff
1089	11110		D:1800-D:1fff
1090	00001		D:4000-D:47ff	D:6000-D:7fff
1091	10001		D:4800-D:4fff
1092	01001		D:5000-D:57ff
1093	11001		D:5800-D:5fff
1094	00101		D:8000-D:87ff	D:A000-D:bfff
1095	10101		D:8800-D:8fff
1096	01101		D:9000-D:97ff
1097	11101		D:9800-D:9fff 
1098	00011		D:C000-D:c7ff	D:E000-D:ffff
1099	10011		D:C800-D:cfff
1100	01011		D:D000-D:d7ff
1101	11011		D:D800-D:dfff
1102	00111		E:0000-E:07ff	E:2000-E:3fff
1103	10111		E:0800-E:0fff
1104	01111		E:1000-E:17ff
1105	11111		E:1800-E:1fff
1106	
1107	
1108	*****************************************************************************
1109	
1110	** PureData Corp **
1111	PDI507 (8-bit card)
1112	--------------------
1113	  - from Mark Rejhon <mdrejhon@magi.com> (slight modifications by Avery)
1114	  - Avery's note: I think PDI508 cards (but definitely NOT PDI508Plus cards)
1115	    are mostly the same as this.  PDI508Plus cards appear to be mainly
1116	    software-configured.
1117	
1118	Jumpers:
1119		There is a jumper array at the bottom of the card, near the edge
1120	        connector.  This array is labelled J1.  They control the IRQs and
1121	        something else.  Put only one jumper on the IRQ pins.
1122	
1123		ETS1, ETS2 are for timing on very long distance networks.  See the
1124		more general information near the top of this file.
1125	
1126		There is a J2 jumper on two pins.  A jumper should be put on them,
1127	        since it was already there when I got the card.  I don't know what
1128	        this jumper is for though.
1129	
1130		There is a two-jumper array for J3.  I don't know what it is for,
1131	        but there were already two jumpers on it when I got the card.  It's
1132	        a six pin grid in a two-by-three fashion.  The jumpers were
1133	        configured as follows:
1134	
1135		   .-------.
1136		 o | o   o |
1137		   :-------:    ------> Accessible end of card with connectors
1138		 o | o   o |             in this direction ------->
1139		   `-------'
1140	
1141	Carl de Billy <CARL@carainfo.com> explains J3 and J4:
1142	
1143		J3 Diagram:
1144	
1145	           .-------.
1146	         o | o   o |
1147	           :-------:    TWIST Technology
1148	         o | o   o |
1149	           `-------'
1150	           .-------.
1151	           | o   o | o
1152	           :-------:    COAX Technology
1153	           | o   o | o
1154	           `-------'
1155	
1156	  - If using coax cable in a bus topology the J4 jumper must be removed;
1157	    place it on one pin.
1158	
1159	  - If using bus topology with twisted pair wiring move the J3 
1160	    jumpers so they connect the middle pin and the pins closest to the RJ11
1161	    Connectors.  Also the J4 jumper must be removed; place it on one pin of
1162	    J4 jumper for storage.
1163	
1164	  - If using  star topology with twisted pair wiring move the J3 
1165	    jumpers so they connect the middle pin and the pins closest to the RJ11
1166	    connectors.
1167	
1168	
1169	DIP Switches:
1170	
1171		The DIP switches accessible on the accessible end of the card while
1172	        it is installed, is used to set the ARCnet address.  There are 8
1173	        switches.  Use an address from 1 to 254.
1174	
1175		Switch No.
1176		12345678	ARCnet address
1177		-----------------------------------------
1178		00000000	FF  	(Don't use this!)
1179		00000001	FE
1180		00000010	FD
1181		....
1182		11111101	2	
1183		11111110	1
1184		11111111	0	(Don't use this!)
1185	
1186		There is another array of eight DIP switches at the top of the
1187	        card.  There are five labelled MS0-MS4 which seem to control the
1188	        memory address, and another three labelled IO0-IO2 which seem to
1189	        control the base I/O address of the card.
1190	
1191		This was difficult to test by trial and error, and the I/O addresses
1192	        are in a weird order.  This was tested by setting the DIP switches,
1193	        rebooting the computer, and attempting to load ARCETHER at various
1194	        addresses (mostly between 0x200 and 0x400).  The address that caused
1195	        the red transmit LED to blink, is the one that I thought works.
1196	
1197		Also, the address 0x3D0 seem to have a special meaning, since the
1198	        ARCETHER packet driver loaded fine, but without the red LED
1199	        blinking.  I don't know what 0x3D0 is for though.  I recommend using
1200	        an address of 0x300 since Windows may not like addresses below
1201	        0x300.
1202	
1203		IO Switch No.
1204		210             I/O address
1205		-------------------------------
1206		111             0x260
1207		110             0x290
1208		101             0x2E0
1209		100             0x2F0
1210		011             0x300
1211		010             0x350
1212		001             0x380
1213		000             0x3E0
1214	
1215		The memory switches set a reserved address space of 0x1000 bytes
1216	        (0x100 segment units, or 4k).  For example if I set an address of
1217	        0xD000, it will use up addresses 0xD000 to 0xD100.
1218	
1219		The memory switches were tested by booting using QEMM386 stealth,
1220	        and using LOADHI to see what address automatically became excluded
1221	        from the upper memory regions, and then attempting to load ARCETHER
1222	        using these addresses.
1223	
1224		I recommend using an ARCnet memory address of 0xD000, and putting
1225	        the EMS page frame at 0xC000 while using QEMM stealth mode.  That
1226	        way, you get contiguous high memory from 0xD100 almost all the way
1227	        the end of the megabyte.
1228	
1229		Memory Switch 0 (MS0) didn't seem to work properly when set to OFF
1230	        on my card.  It could be malfunctioning on my card.  Experiment with
1231	        it ON first, and if it doesn't work, set it to OFF.  (It may be a
1232	        modifier for the 0x200 bit?)
1233	
1234		MS Switch No.
1235		43210           Memory address
1236		--------------------------------
1237		00001           0xE100  (guessed - was not detected by QEMM)
1238		00011           0xE000  (guessed - was not detected by QEMM)
1239		00101           0xDD00
1240		00111           0xDC00
1241		01001           0xD900
1242		01011           0xD800
1243		01101           0xD500
1244		01111           0xD400
1245		10001           0xD100
1246		10011           0xD000
1247		10101           0xCD00
1248		10111           0xCC00
1249		11001           0xC900 (guessed - crashes tested system)
1250		11011           0xC800 (guessed - crashes tested system)
1251		11101           0xC500 (guessed - crashes tested system)
1252		11111           0xC400 (guessed - crashes tested system)
1253		
1254		
1255	*****************************************************************************
1256	
1257	** CNet Technology Inc. **
1258	120 Series (8-bit cards)
1259	------------------------
1260	  - from Juergen Seifert <seifert@htwm.de>
1261	
1262	
1263	CNET TECHNOLOGY INC. (CNet) ARCNET 120A SERIES
1264	==============================================
1265	
1266	This description has been written by Juergen Seifert <seifert@htwm.de>
1267	using information from the following Original CNet Manual 
1268	
1269	              "ARCNET
1270	            USER'S MANUAL 
1271	                for
1272	               CN120A
1273	               CN120AB
1274	               CN120TP
1275	               CN120ST
1276	               CN120SBT
1277	             P/N:12-01-0007
1278	             Revision 3.00"
1279	
1280	ARCNET is a registered trademark of the Datapoint Corporation
1281	
1282	P/N 120A   ARCNET 8 bit XT/AT Star
1283	P/N 120AB  ARCNET 8 bit XT/AT Bus
1284	P/N 120TP  ARCNET 8 bit XT/AT Twisted Pair
1285	P/N 120ST  ARCNET 8 bit XT/AT Star, Twisted Pair
1286	P/N 120SBT ARCNET 8 bit XT/AT Star, Bus, Twisted Pair
1287	
1288	    __________________________________________________________________
1289	   |                                                                  |
1290	   |                                                               ___|
1291	   |                                                          LED |___|
1292	   |                                                               ___|
1293	   |                                                            N |   | ID7
1294	   |                                                            o |   | ID6
1295	   |                                                            d | S | ID5
1296	   |                                                            e | W | ID4
1297	   |                     ___________________                    A | 2 | ID3
1298	   |                    |                   |                   d |   | ID2
1299	   |                    |                   |  1 2 3 4 5 6 7 8  d |   | ID1
1300	   |                    |                   | _________________ r |___| ID0
1301	   |                    |      90C65        ||       SW1       |  ____|
1302	   |  JP 8 7            |                   ||_________________| |    |
1303	   |    |o|o|  JP1      |                   |                    | J2 |
1304	   |    |o|o|  |oo|     |                   |         JP 1 1 1   |    |
1305	   |   ______________   |                   |            0 1 2   |____|
1306	   |  |  PROM        |  |___________________|           |o|o|o|  _____|
1307	   |  >  SOCKET      |  JP 6 5 4 3 2                    |o|o|o| | J1  |
1308	   |  |______________|    |o|o|o|o|o|                   |o|o|o| |_____|
1309	   |_____                 |o|o|o|o|o|                   ______________|
1310	         |                                             |
1311	         |_____________________________________________|
1312	
1313	Legend:
1314	
1315	90C65       ARCNET Probe
1316	S1  1-5:    Base Memory Address Select
1317	    6-8:    Base I/O Address Select
1318	S2  1-8:    Node ID Select (ID0-ID7)
1319	JP1     ROM Enable Select
1320	JP2     IRQ2
1321	JP3     IRQ3
1322	JP4     IRQ4
1323	JP5     IRQ5
1324	JP6     IRQ7
1325	JP7/JP8     ET1, ET2 Timeout Parameters
1326	JP10/JP11   Coax / Twisted Pair Select  (CN120ST/SBT only)
1327	JP12        Terminator Select       (CN120AB/ST/SBT only)
1328	J1      BNC RG62/U Connector        (all except CN120TP)
1329	J2      Two 6-position Telephone Jack   (CN120TP/ST/SBT only)
1330	
1331	Setting one of the switches to Off means "1", On means "0".
1332	
1333	
1334	Setting the Node ID
1335	-------------------
1336	
1337	The eight switches in SW2 are used to set the node ID. Each node attached
1338	to the network must have an unique node ID which must be different from 0.
1339	Switch 1 (ID0) serves as the least significant bit (LSB).
1340	
1341	The node ID is the sum of the values of all switches set to "1"  
1342	These values are:
1343	
1344	   Switch | Label | Value
1345	   -------|-------|-------
1346	     1    | ID0   |   1
1347	     2    | ID1   |   2
1348	     3    | ID2   |   4
1349	     4    | ID3   |   8
1350	     5    | ID4   |  16
1351	     6    | ID5   |  32
1352	     7    | ID6   |  64
1353	     8    | ID7   | 128
1354	
1355	Some Examples:
1356	
1357	    Switch         | Hex     | Decimal 
1358	   8 7 6 5 4 3 2 1 | Node ID | Node ID
1359	   ----------------|---------|---------
1360	   0 0 0 0 0 0 0 0 |    not allowed
1361	   0 0 0 0 0 0 0 1 |    1    |    1 
1362	   0 0 0 0 0 0 1 0 |    2    |    2
1363	   0 0 0 0 0 0 1 1 |    3    |    3
1364	       . . .       |         |
1365	   0 1 0 1 0 1 0 1 |   55    |   85
1366	       . . .       |         |
1367	   1 0 1 0 1 0 1 0 |   AA    |  170
1368	       . . .       |         |  
1369	   1 1 1 1 1 1 0 1 |   FD    |  253
1370	   1 1 1 1 1 1 1 0 |   FE    |  254
1371	   1 1 1 1 1 1 1 1 |   FF    |  255
1372	
1373	
1374	Setting the I/O Base Address
1375	----------------------------
1376	
1377	The last three switches in switch block SW1 are used to select one
1378	of eight possible I/O Base addresses using the following table
1379	
1380	
1381	   Switch      | Hex I/O
1382	    6   7   8  | Address
1383	   ------------|--------
1384	   ON  ON  ON  |  260
1385	   OFF ON  ON  |  290
1386	   ON  OFF ON  |  2E0  (Manufacturer's default)
1387	   OFF OFF ON  |  2F0
1388	   ON  ON  OFF |  300
1389	   OFF ON  OFF |  350
1390	   ON  OFF OFF |  380
1391	   OFF OFF OFF |  3E0
1392	
1393	
1394	Setting the Base Memory (RAM) buffer Address
1395	--------------------------------------------
1396	
1397	The memory buffer (RAM) requires 2K. The base of this buffer can be 
1398	located in any of eight positions. The address of the Boot Prom is
1399	memory base + 8K or memory base + 0x2000.
1400	Switches 1-5 of switch block SW1 select the Memory Base address.
1401	
1402	   Switch              | Hex RAM | Hex ROM
1403	    1   2   3   4   5  | Address | Address *)
1404	   --------------------|---------|-----------
1405	   ON  ON  ON  ON  ON  |  C0000  |  C2000
1406	   ON  ON  OFF ON  ON  |  C4000  |  C6000
1407	   ON  ON  ON  OFF ON  |  CC000  |  CE000
1408	   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
1409	   ON  ON  ON  ON  OFF |  D4000  |  D6000
1410	   ON  ON  OFF ON  OFF |  D8000  |  DA000
1411	   ON  ON  ON  OFF OFF |  DC000  |  DE000
1412	   ON  ON  OFF OFF OFF |  E0000  |  E2000
1413	  
1414	*) To enable the Boot ROM install the jumper JP1
1415	
1416	Note: Since the switches 1 and 2 are always set to ON it may be possible
1417	      that they can be used to add an offset of 2K, 4K or 6K to the base
1418	      address, but this feature is not documented in the manual and I
1419	      haven't tested it yet.
1420	
1421	
1422	Setting the Interrupt Line
1423	--------------------------
1424	
1425	To select a hardware interrupt level install one (only one!) of the jumpers
1426	JP2, JP3, JP4, JP5, JP6. JP2 is the default.
1427	
1428	   Jumper | IRQ     
1429	   -------|-----
1430	     2    |  2
1431	     3    |  3
1432	     4    |  4
1433	     5    |  5
1434	     6    |  7
1435	
1436	
1437	Setting the Internal Terminator on CN120AB/TP/SBT
1438	--------------------------------------------------
1439	
1440	The jumper JP12 is used to enable the internal terminator. 
1441	
1442	                         -----
1443	       0                |  0  |     
1444	     -----   ON         |     |  ON
1445	    |  0  |             |  0  |
1446	    |     |  OFF         -----   OFF
1447	    |  0  |                0
1448	     -----
1449	   Terminator          Terminator 
1450	    disabled            enabled
1451	  
1452	
1453	Selecting the Connector Type on CN120ST/SBT
1454	-------------------------------------------
1455	
1456	     JP10    JP11        JP10    JP11
1457	                         -----   -----
1458	       0       0        |  0  | |  0  |       
1459	     -----   -----      |     | |     |
1460	    |  0  | |  0  |     |  0  | |  0  |
1461	    |     | |     |      -----   -----
1462	    |  0  | |  0  |        0       0 
1463	     -----   -----
1464	     Coaxial Cable       Twisted Pair Cable 
1465	       (Default)
1466	
1467	
1468	Setting the Timeout Parameters
1469	------------------------------
1470	
1471	The jumpers labeled EXT1 and EXT2 are used to determine the timeout 
1472	parameters. These two jumpers are normally left open.
1473	
1474	
1475	
1476	*****************************************************************************
1477	
1478	** CNet Technology Inc. **
1479	160 Series (16-bit cards)
1480	-------------------------
1481	  - from Juergen Seifert <seifert@htwm.de>
1482	
1483	CNET TECHNOLOGY INC. (CNet) ARCNET 160A SERIES
1484	==============================================
1485	
1486	This description has been written by Juergen Seifert <seifert@htwm.de>
1487	using information from the following Original CNet Manual 
1488	
1489	              "ARCNET
1490	            USER'S MANUAL 
1491	                for
1492	               CN160A
1493	               CN160AB
1494	               CN160TP
1495	             P/N:12-01-0006
1496	             Revision 3.00"
1497	
1498	ARCNET is a registered trademark of the Datapoint Corporation
1499	
1500	P/N 160A   ARCNET 16 bit XT/AT Star
1501	P/N 160AB  ARCNET 16 bit XT/AT Bus
1502	P/N 160TP  ARCNET 16 bit XT/AT Twisted Pair
1503	
1504	   ___________________________________________________________________
1505	  <                             _________________________          ___|
1506	  >               |oo| JP2     |                         |    LED |___|
1507	  <               |oo| JP1     |        9026             |    LED |___|
1508	  >                            |_________________________|         ___|
1509	  <                                                             N |   | ID7
1510	  >                                                      1      o |   | ID6
1511	  <                                    1 2 3 4 5 6 7 8 9 0      d | S | ID5
1512	  >         _______________           _____________________     e | W | ID4
1513	  <        |     PROM      |         |         SW1         |    A | 2 | ID3
1514	  >        >    SOCKET     |         |_____________________|    d |   | ID2
1515	  <        |_______________|          | IO-Base   | MEM   |     d |   | ID1
1516	  >                                                             r |___| ID0
1517	  <                                                               ____|
1518	  >                                                              |    |
1519	  <                                                              | J1 |
1520	  >                                                              |    |
1521	  <                                                              |____|
1522	  >                            1 1 1 1                                |
1523	  <  3 4 5 6 7      JP     8 9 0 1 2 3                                |
1524	  > |o|o|o|o|o|           |o|o|o|o|o|o|                               |
1525	  < |o|o|o|o|o| __        |o|o|o|o|o|o|                    ___________|
1526	  >            |  |                                       |
1527	  <____________|  |_______________________________________|
1528	
1529	Legend:
1530	
1531	9026            ARCNET Probe
1532	SW1 1-6:    Base I/O Address Select
1533	    7-10:   Base Memory Address Select
1534	SW2 1-8:    Node ID Select (ID0-ID7)
1535	JP1/JP2     ET1, ET2 Timeout Parameters
1536	JP3-JP13    Interrupt Select
1537	J1      BNC RG62/U Connector        (CN160A/AB only)
1538	J1      Two 6-position Telephone Jack   (CN160TP only)
1539	LED
1540	
1541	Setting one of the switches to Off means "1", On means "0".
1542	
1543	
1544	Setting the Node ID
1545	-------------------
1546	
1547	The eight switches in SW2 are used to set the node ID. Each node attached
1548	to the network must have an unique node ID which must be different from 0.
1549	Switch 1 (ID0) serves as the least significant bit (LSB).
1550	
1551	The node ID is the sum of the values of all switches set to "1"  
1552	These values are:
1553	
1554	   Switch | Label | Value
1555	   -------|-------|-------
1556	     1    | ID0   |   1
1557	     2    | ID1   |   2
1558	     3    | ID2   |   4
1559	     4    | ID3   |   8
1560	     5    | ID4   |  16
1561	     6    | ID5   |  32
1562	     7    | ID6   |  64
1563	     8    | ID7   | 128
1564	
1565	Some Examples:
1566	
1567	    Switch         | Hex     | Decimal 
1568	   8 7 6 5 4 3 2 1 | Node ID | Node ID
1569	   ----------------|---------|---------
1570	   0 0 0 0 0 0 0 0 |    not allowed
1571	   0 0 0 0 0 0 0 1 |    1    |    1 
1572	   0 0 0 0 0 0 1 0 |    2    |    2
1573	   0 0 0 0 0 0 1 1 |    3    |    3
1574	       . . .       |         |
1575	   0 1 0 1 0 1 0 1 |   55    |   85
1576	       . . .       |         |
1577	   1 0 1 0 1 0 1 0 |   AA    |  170
1578	       . . .       |         |  
1579	   1 1 1 1 1 1 0 1 |   FD    |  253
1580	   1 1 1 1 1 1 1 0 |   FE    |  254
1581	   1 1 1 1 1 1 1 1 |   FF    |  255
1582	
1583	
1584	Setting the I/O Base Address
1585	----------------------------
1586	
1587	The first six switches in switch block SW1 are used to select the I/O Base
1588	address using the following table:
1589	
1590	             Switch        | Hex I/O
1591	    1   2   3   4   5   6  | Address
1592	   ------------------------|--------
1593	   OFF ON  ON  OFF OFF ON  |  260
1594	   OFF ON  OFF ON  ON  OFF |  290
1595	   OFF ON  OFF OFF OFF ON  |  2E0  (Manufacturer's default)
1596	   OFF ON  OFF OFF OFF OFF |  2F0
1597	   OFF OFF ON  ON  ON  ON  |  300
1598	   OFF OFF ON  OFF ON  OFF |  350
1599	   OFF OFF OFF ON  ON  ON  |  380
1600	   OFF OFF OFF OFF OFF ON  |  3E0
1601	
1602	Note: Other IO-Base addresses seem to be selectable, but only the above
1603	      combinations are documented.
1604	
1605	
1606	Setting the Base Memory (RAM) buffer Address
1607	--------------------------------------------
1608	
1609	The switches 7-10 of switch block SW1 are used to select the Memory
1610	Base address of the RAM (2K) and the PROM.
1611	
1612	   Switch          | Hex RAM | Hex ROM
1613	    7   8   9  10  | Address | Address
1614	   ----------------|---------|-----------
1615	   OFF OFF ON  ON  |  C0000  |  C8000
1616	   OFF OFF ON  OFF |  D0000  |  D8000 (Default)
1617	   OFF OFF OFF ON  |  E0000  |  E8000
1618	
1619	Note: Other MEM-Base addresses seem to be selectable, but only the above
1620	      combinations are documented.
1621	
1622	
1623	Setting the Interrupt Line
1624	--------------------------
1625	
1626	To select a hardware interrupt level install one (only one!) of the jumpers
1627	JP3 through JP13 using the following table:
1628	
1629	   Jumper | IRQ     
1630	   -------|-----------------
1631	     3    |  14
1632	     4    |  15
1633	     5    |  12
1634	     6    |  11
1635	     7    |  10
1636	     8    |   3
1637	     9    |   4
1638	    10    |   5
1639	    11    |   6
1640	    12    |   7
1641	    13    |   2 (=9) Default!
1642	
1643	Note:  - Do not use JP11=IRQ6, it may conflict with your Floppy Disk
1644	         Controller
1645	       - Use JP3=IRQ14 only, if you don't have an IDE-, MFM-, or RLL-
1646	         Hard Disk, it may conflict with their controllers
1647	
1648	
1649	Setting the Timeout Parameters
1650	------------------------------
1651	
1652	The jumpers labeled JP1 and JP2 are used to determine the timeout
1653	parameters. These two jumpers are normally left open.
1654	
1655	
1656	*****************************************************************************
1657	
1658	** Lantech **
1659	8-bit card, unknown model
1660	-------------------------
1661	  - from Vlad Lungu <vlungu@ugal.ro> - his e-mail address seemed broken at
1662	    the time I tried to reach him.  Sorry Vlad, if you didn't get my reply.
1663	
1664	   ________________________________________________________________
1665	   |   1         8                                                 |
1666	   |   ___________                                               __|
1667	   |   |   SW1    |                                         LED |__|
1668	   |   |__________|                                                |
1669	   |                                                            ___|
1670	   |                _____________________                       |S | 8
1671	   |                |                   |                       |W |
1672	   |                |                   |                       |2 |
1673	   |                |                   |                       |__| 1
1674	   |                |      UM9065L      |     |o|  JP4         ____|____
1675	   |                |                   |     |o|              |  CN    |
1676	   |                |                   |                      |________|
1677	   |                |                   |                          |
1678	   |                |___________________|                          |
1679	   |                                                               |
1680	   |                                                               |
1681	   |      _____________                                            |
1682	   |      |            |                                           |
1683	   |      |    PROM    |        |ooooo|  JP6                       |
1684	   |      |____________|        |ooooo|                            |
1685	   |_____________                                             _   _|
1686	                |____________________________________________| |__|
1687	
1688	
1689	UM9065L : ARCnet Controller
1690	
1691	SW 1    : Shared Memory Address and I/O Base
1692	
1693	        ON=0
1694	
1695	        12345|Memory Address
1696	        -----|--------------
1697	        00001|  D4000
1698	        00010|  CC000
1699	        00110|  D0000
1700	        01110|  D1000
1701	        01101|  D9000
1702	        10010|  CC800
1703	        10011|  DC800
1704	        11110|  D1800
1705	
1706	It seems that the bits are considered in reverse order.  Also, you must
1707	observe that some of those addresses are unusual and I didn't probe them; I
1708	used a memory dump in DOS to identify them.  For the 00000 configuration and
1709	some others that I didn't write here the card seems to conflict with the
1710	video card (an S3 GENDAC). I leave the full decoding of those addresses to
1711	you.
1712	
1713	        678| I/O Address
1714	        ---|------------
1715	        000|    260
1716	        001|    failed probe
1717	        010|    2E0
1718	        011|    380
1719	        100|    290
1720	        101|    350
1721	        110|    failed probe
1722	        111|    3E0
1723	
1724	SW 2  : Node ID (binary coded)
1725	
1726	JP 4  : Boot PROM enable   CLOSE - enabled
1727	                           OPEN  - disabled
1728	
1729	JP 6  : IRQ set (ONLY ONE jumper on 1-5 for IRQ 2-6)
1730	
1731	
1732	*****************************************************************************
1733	
1734	** Acer **
1735	8-bit card, Model 5210-003
1736	--------------------------
1737	  - from Vojtech Pavlik <vojtech@suse.cz> using portions of the existing
1738	    arcnet-hardware file.
1739	
1740	This is a 90C26 based card.  Its configuration seems similar to the SMC
1741	PC100, but has some additional jumpers I don't know the meaning of.
1742	
1743	               __
1744	              |  |
1745	   ___________|__|_________________________
1746	  |         |      |                       |
1747	  |         | BNC  |                       |
1748	  |         |______|                    ___|
1749	  |  _____________________             |___  
1750	  | |                     |                |
1751	  | | Hybrid IC           |                |
1752	  | |                     |       o|o J1   |
1753	  | |_____________________|       8|8      |
1754	  |                               8|8 J5   |
1755	  |                               o|o      |
1756	  |                               8|8      |
1757	  |__                             8|8      |
1758	 (|__| LED                        o|o      |
1759	  |                               8|8      |
1760	  |                               8|8 J15  |
1761	  |                                        |
1762	  |                    _____               |
1763	  |                   |     |   _____      |
1764	  |                   |     |  |     |  ___|
1765	  |                   |     |  |     | |    
1766	  |  _____            | ROM |  | UFS | |    
1767	  | |     |           |     |  |     | |   
1768	  | |     |     ___   |     |  |     | |   
1769	  | |     |    |   |  |__.__|  |__.__| |   
1770	  | | NCR |    |XTL|   _____    _____  |   
1771	  | |     |    |___|  |     |  |     | |   
1772	  | |90C26|           |     |  |     | |   
1773	  | |     |           | RAM |  | UFS | |   
1774	  | |     | J17 o|o   |     |  |     | |   
1775	  | |     | J16 o|o   |     |  |     | |   
1776	  | |__.__|           |__.__|  |__.__| |   
1777	  |  ___                               |   
1778	  | |   |8                             |   
1779	  | |SW2|                              |   
1780	  | |   |                              |   
1781	  | |___|1                             |   
1782	  |  ___                               |   
1783	  | |   |10           J18 o|o          |   
1784	  | |   |                 o|o          |   
1785	  | |SW1|                 o|o          |   
1786	  | |   |             J21 o|o          |   
1787	  | |___|1                             |   
1788	  |                                    |   
1789	  |____________________________________|   
1790	
1791	
1792	Legend:
1793	
1794	90C26       ARCNET Chip
1795	XTL         20 MHz Crystal
1796	SW1 1-6     Base I/O Address Select
1797	    7-10    Memory Address Select
1798	SW2 1-8     Node ID Select (ID0-ID7)
1799	J1-J5       IRQ Select
1800	J6-J21      Unknown (Probably extra timeouts & ROM enable ...)
1801	LED1        Activity LED 
1802	BNC         Coax connector (STAR ARCnet)
1803	RAM         2k of SRAM
1804	ROM         Boot ROM socket
1805	UFS         Unidentified Flying Sockets
1806	
1807	
1808	Setting the Node ID
1809	-------------------
1810	
1811	The eight switches in SW2 are used to set the node ID. Each node attached
1812	to the network must have an unique node ID which must not be 0.
1813	Switch 1 (ID0) serves as the least significant bit (LSB).
1814	
1815	Setting one of the switches to OFF means "1", ON means "0".
1816	
1817	The node ID is the sum of the values of all switches set to "1"
1818	These values are:
1819	
1820	   Switch | Value
1821	   -------|-------
1822	     1    |   1
1823	     2    |   2
1824	     3    |   4
1825	     4    |   8
1826	     5    |  16
1827	     6    |  32
1828	     7    |  64
1829	     8    | 128
1830	
1831	Don't set this to 0 or 255; these values are reserved.
1832	
1833	
1834	Setting the I/O Base Address
1835	----------------------------
1836	
1837	The switches 1 to 6 of switch block SW1 are used to select one
1838	of 32 possible I/O Base addresses using the following tables
1839	   
1840	          | Hex
1841	   Switch | Value
1842	   -------|-------
1843	     1    | 200  
1844	     2    | 100  
1845	     3    |  80  
1846	     4    |  40  
1847	     5    |  20  
1848	     6    |  10 
1849	
1850	The I/O address is sum of all switches set to "1". Remember that
1851	the I/O address space bellow 0x200 is RESERVED for mainboard, so
1852	switch 1 should be ALWAYS SET TO OFF. 
1853	
1854	
1855	Setting the Base Memory (RAM) buffer Address
1856	--------------------------------------------
1857	
1858	The memory buffer (RAM) requires 2K. The base of this buffer can be
1859	located in any of sixteen positions. However, the addresses below
1860	A0000 are likely to cause system hang because there's main RAM.
1861	
1862	Jumpers 7-10 of switch block SW1 select the Memory Base address.
1863	
1864	   Switch          | Hex RAM
1865	    7   8   9  10  | Address
1866	   ----------------|---------
1867	   OFF OFF OFF OFF |  F0000 (conflicts with main BIOS)
1868	   OFF OFF OFF ON  |  E0000 
1869	   OFF OFF ON  OFF |  D0000
1870	   OFF OFF ON  ON  |  C0000 (conflicts with video BIOS)
1871	   OFF ON  OFF OFF |  B0000 (conflicts with mono video)
1872	   OFF ON  OFF ON  |  A0000 (conflicts with graphics)
1873	
1874	
1875	Setting the Interrupt Line
1876	--------------------------
1877	
1878	Jumpers 1-5 of the jumper block J1 control the IRQ level. ON means 
1879	shorted, OFF means open.
1880	
1881	    Jumper              |  IRQ
1882	    1   2   3   4   5   |
1883	   ----------------------------
1884	    ON  OFF OFF OFF OFF |  7
1885	    OFF ON  OFF OFF OFF |  5
1886	    OFF OFF ON  OFF OFF |  4
1887	    OFF OFF OFF ON  OFF |  3
1888	    OFF OFF OFF OFF ON  |  2
1889	
1890	
1891	Unknown jumpers & sockets
1892	-------------------------
1893	
1894	I know nothing about these. I just guess that J16&J17 are timeout
1895	jumpers and maybe one of J18-J21 selects ROM. Also J6-J10 and
1896	J11-J15 are connecting IRQ2-7 to some pins on the UFSs. I can't
1897	guess the purpose.
1898	
1899	
1900	*****************************************************************************
1901	
1902	** Datapoint? **
1903	LAN-ARC-8, an 8-bit card
1904	------------------------
1905	  - from Vojtech Pavlik <vojtech@suse.cz>
1906	
1907	This is another SMC 90C65-based ARCnet card. I couldn't identify the
1908	manufacturer, but it might be DataPoint, because the card has the
1909	original arcNet logo in its upper right corner.
1910	
1911	          _______________________________________________________
1912	         |                         _________                     |
1913	         |                        |   SW2   | ON      arcNet     |
1914	         |                        |_________| OFF             ___|
1915	         |  _____________         1 ______  8                |   | 8  
1916	         | |             | SW1     | XTAL | ____________     | S |    
1917	         | > RAM (2k)    |         |______||            |    | W |    
1918	         | |_____________|                 |      H     |    | 3 |    
1919	         |                        _________|_____ y     |    |___| 1  
1920	         |  _________            |         |     |b     |        |    
1921	         | |_________|           |         |     |r     |        |    
1922	         |                       |     SMC |     |i     |        |    
1923	         |                       |    90C65|     |d     |        |      
1924	         |  _________            |         |     |      |        |
1925	         | |   SW1   | ON        |         |     |I     |        |
1926	         | |_________| OFF       |_________|_____/C     |   _____|
1927	         |  1       8                      |            |  |     |___
1928	         |  ______________                 |            |  | BNC |___|
1929	         | |              |                |____________|  |_____|
1930	         | > EPROM SOCKET |              _____________           |
1931	         | |______________|             |_____________|          |
1932	         |                                         ______________|
1933	         |                                        | 
1934	         |________________________________________|
1935	
1936	Legend:
1937	
1938	90C65       ARCNET Chip 
1939	SW1 1-5:    Base Memory Address Select
1940	    6-8:    Base I/O Address Select
1941	SW2 1-8:    Node ID Select
1942	SW3 1-5:    IRQ Select   
1943	    6-7:    Extra Timeout
1944	    8  :    ROM Enable   
1945	BNC         Coax connector
1946	XTAL        20 MHz Crystal
1947	
1948	
1949	Setting the Node ID
1950	-------------------
1951	
1952	The eight switches in SW3 are used to set the node ID. Each node attached
1953	to the network must have an unique node ID which must not be 0.
1954	Switch 1 serves as the least significant bit (LSB).
1955	
1956	Setting one of the switches to Off means "1", On means "0".
1957	
1958	The node ID is the sum of the values of all switches set to "1"  
1959	These values are:
1960	
1961	   Switch | Value
1962	   -------|-------
1963	     1    |   1
1964	     2    |   2
1965	     3    |   4
1966	     4    |   8
1967	     5    |  16
1968	     6    |  32
1969	     7    |  64
1970	     8    | 128
1971	
1972	
1973	Setting the I/O Base Address
1974	----------------------------
1975	
1976	The last three switches in switch block SW1 are used to select one
1977	of eight possible I/O Base addresses using the following table
1978	
1979	
1980	   Switch      | Hex I/O
1981	    6   7   8  | Address
1982	   ------------|--------
1983	   ON  ON  ON  |  260
1984	   OFF ON  ON  |  290
1985	   ON  OFF ON  |  2E0  (Manufacturer's default)
1986	   OFF OFF ON  |  2F0
1987	   ON  ON  OFF |  300
1988	   OFF ON  OFF |  350
1989	   ON  OFF OFF |  380
1990	   OFF OFF OFF |  3E0
1991	
1992	
1993	Setting the Base Memory (RAM) buffer Address
1994	--------------------------------------------
1995	
1996	The memory buffer (RAM) requires 2K. The base of this buffer can be 
1997	located in any of eight positions. The address of the Boot Prom is
1998	memory base + 0x2000.
1999	Jumpers 3-5 of switch block SW1 select the Memory Base address.
2000	
2001	   Switch              | Hex RAM | Hex ROM
2002	    1   2   3   4   5  | Address | Address *)
2003	   --------------------|---------|-----------
2004	   ON  ON  ON  ON  ON  |  C0000  |  C2000
2005	   ON  ON  OFF ON  ON  |  C4000  |  C6000
2006	   ON  ON  ON  OFF ON  |  CC000  |  CE000
2007	   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
2008	   ON  ON  ON  ON  OFF |  D4000  |  D6000
2009	   ON  ON  OFF ON  OFF |  D8000  |  DA000
2010	   ON  ON  ON  OFF OFF |  DC000  |  DE000
2011	   ON  ON  OFF OFF OFF |  E0000  |  E2000
2012	  
2013	*) To enable the Boot ROM set the switch 8 of switch block SW3 to position ON.
2014	
2015	The switches 1 and 2 probably add 0x0800 and 0x1000 to RAM base address.
2016	
2017	
2018	Setting the Interrupt Line
2019	--------------------------
2020	
2021	Switches 1-5 of the switch block SW3 control the IRQ level.
2022	
2023	    Jumper              |  IRQ
2024	    1   2   3   4   5   |
2025	   ----------------------------
2026	    ON  OFF OFF OFF OFF |  3
2027	    OFF ON  OFF OFF OFF |  4
2028	    OFF OFF ON  OFF OFF |  5
2029	    OFF OFF OFF ON  OFF |  7
2030	    OFF OFF OFF OFF ON  |  2
2031	
2032	
2033	Setting the Timeout Parameters
2034	------------------------------
2035	
2036	The switches 6-7 of the switch block SW3 are used to determine the timeout
2037	parameters.  These two switches are normally left in the OFF position.
2038	
2039	
2040	*****************************************************************************
2041	
2042	** Topware **
2043	8-bit card, TA-ARC/10
2044	-------------------------
2045	  - from Vojtech Pavlik <vojtech@suse.cz>
2046	
2047	This is another very similar 90C65 card. Most of the switches and jumpers
2048	are the same as on other clones.
2049	
2050	 _____________________________________________________________________
2051	|  ___________   |                         |            ______        |
2052	| |SW2 NODE ID|  |                         |           | XTAL |       |
2053	| |___________|  |  Hybrid IC              |           |______|       |
2054	|  ___________   |                         |                        __|    
2055	| |SW1 MEM+I/O|  |_________________________|                   LED1|__|)   
2056	| |___________|           1 2                                         |     
2057	|                     J3 |o|o| TIMEOUT                          ______|    
2058	|     ______________     |o|o|                                 |      |    
2059	|    |              |  ___________________                     | RJ   |    
2060	|    > EPROM SOCKET | |                   \                    |------|     
2061	|J2  |______________| |                    |                   |      |    
2062	||o|                  |                    |                   |______|
2063	||o| ROM ENABLE       |        SMC         |    _________             |
2064	|     _____________   |       90C65        |   |_________|       _____|    
2065	|    |             |  |                    |                    |     |___ 
2066	|    > RAM (2k)    |  |                    |                    | BNC |___|
2067	|    |_____________|  |                    |                    |_____|    
2068	|                     |____________________|                          |    
2069	| ________ IRQ 2 3 4 5 7                  ___________                 |
2070	||________|   |o|o|o|o|o|                |___________|                |
2071	|________   J1|o|o|o|o|o|                               ______________|
2072	         |                                             |
2073	         |_____________________________________________|
2074	
2075	Legend:
2076	
2077	90C65       ARCNET Chip
2078	XTAL        20 MHz Crystal
2079	SW1 1-5     Base Memory Address Select
2080	    6-8     Base I/O Address Select
2081	SW2 1-8     Node ID Select (ID0-ID7)
2082	J1          IRQ Select
2083	J2          ROM Enable
2084	J3          Extra Timeout
2085	LED1        Activity LED 
2086	BNC         Coax connector (BUS ARCnet)
2087	RJ          Twisted Pair Connector (daisy chain)
2088	
2089	
2090	Setting the Node ID
2091	-------------------
2092	
2093	The eight switches in SW2 are used to set the node ID. Each node attached to
2094	the network must have an unique node ID which must not be 0.  Switch 1 (ID0)
2095	serves as the least significant bit (LSB).
2096	
2097	Setting one of the switches to Off means "1", On means "0".
2098	
2099	The node ID is the sum of the values of all switches set to "1"
2100	These values are:
2101	
2102	   Switch | Label | Value
2103	   -------|-------|-------
2104	     1    | ID0   |   1
2105	     2    | ID1   |   2
2106	     3    | ID2   |   4
2107	     4    | ID3   |   8
2108	     5    | ID4   |  16
2109	     6    | ID5   |  32
2110	     7    | ID6   |  64
2111	     8    | ID7   | 128
2112	
2113	Setting the I/O Base Address
2114	----------------------------
2115	
2116	The last three switches in switch block SW1 are used to select one
2117	of eight possible I/O Base addresses using the following table:
2118	
2119	
2120	   Switch      | Hex I/O
2121	    6   7   8  | Address
2122	   ------------|--------
2123	   ON  ON  ON  |  260  (Manufacturer's default)
2124	   OFF ON  ON  |  290
2125	   ON  OFF ON  |  2E0                         
2126	   OFF OFF ON  |  2F0
2127	   ON  ON  OFF |  300
2128	   OFF ON  OFF |  350
2129	   ON  OFF OFF |  380
2130	   OFF OFF OFF |  3E0
2131	
2132	
2133	Setting the Base Memory (RAM) buffer Address
2134	--------------------------------------------
2135	
2136	The memory buffer (RAM) requires 2K. The base of this buffer can be
2137	located in any of eight positions. The address of the Boot Prom is
2138	memory base + 0x2000.
2139	Jumpers 3-5 of switch block SW1 select the Memory Base address.
2140	
2141	   Switch              | Hex RAM | Hex ROM
2142	    1   2   3   4   5  | Address | Address *)
2143	   --------------------|---------|-----------
2144	   ON  ON  ON  ON  ON  |  C0000  |  C2000
2145	   ON  ON  OFF ON  ON  |  C4000  |  C6000  (Manufacturer's default) 
2146	   ON  ON  ON  OFF ON  |  CC000  |  CE000
2147	   ON  ON  OFF OFF ON  |  D0000  |  D2000  
2148	   ON  ON  ON  ON  OFF |  D4000  |  D6000
2149	   ON  ON  OFF ON  OFF |  D8000  |  DA000
2150	   ON  ON  ON  OFF OFF |  DC000  |  DE000
2151	   ON  ON  OFF OFF OFF |  E0000  |  E2000
2152	
2153	*) To enable the Boot ROM short the jumper J2.
2154	
2155	The jumpers 1 and 2 probably add 0x0800 and 0x1000 to RAM address.
2156	
2157	
2158	Setting the Interrupt Line
2159	--------------------------
2160	
2161	Jumpers 1-5 of the jumper block J1 control the IRQ level.  ON means
2162	shorted, OFF means open.
2163	
2164	    Jumper              |  IRQ
2165	    1   2   3   4   5   |
2166	   ----------------------------
2167	    ON  OFF OFF OFF OFF |  2
2168	    OFF ON  OFF OFF OFF |  3
2169	    OFF OFF ON  OFF OFF |  4
2170	    OFF OFF OFF ON  OFF |  5
2171	    OFF OFF OFF OFF ON  |  7
2172	
2173	
2174	Setting the Timeout Parameters
2175	------------------------------
2176	
2177	The jumpers J3 are used to set the timeout parameters. These two 
2178	jumpers are normally left open.
2179	
2180	  
2181	*****************************************************************************
2182	
2183	** Thomas-Conrad **
2184	Model #500-6242-0097 REV A (8-bit card)
2185	---------------------------------------
2186	  - from Lars Karlsson <100617.3473@compuserve.com>
2187	
2188	     ________________________________________________________
2189	   |          ________   ________                           |_____
2190	   |         |........| |........|                            |
2191	   |         |________| |________|                         ___|
2192	   |            SW 3       SW 1                           |   |
2193	   |         Base I/O   Base Addr.                Station |   |
2194	   |                                              address |   |
2195	   |    ______                                    switch  |   |
2196	   |   |      |                                           |   |
2197	   |   |      |                                           |___|    
2198	   |   |      |                                 ______        |___._
2199	   |   |______|                                |______|         ____| BNC
2200	   |                                            Jumper-        _____| Connector
2201	   |   Main chip                                block  _    __|   '  
2202	   |                                                  | |  |    RJ Connector
2203	   |                                                  |_|  |    with 110 Ohm
2204	   |                                                       |__  Terminator
2205	   |    ___________                                         __|
2206	   |   |...........|                                       |    RJ-jack
2207	   |   |...........|    _____                              |    (unused)
2208	   |   |___________|   |_____|                             |__
2209	   |  Boot PROM socket IRQ-jumpers                            |_  Diagnostic
2210	   |________                                       __          _| LED (red)
2211	            | | | | | | | | | | | | | | | | | | | |  |        |
2212	            | | | | | | | | | | | | | | | | | | | |  |________|
2213	                                                              |
2214	                                                              |
2215	
2216	And here are the settings for some of the switches and jumpers on the cards.
2217	
2218	
2219	          I/O
2220	
2221	         1 2 3 4 5 6 7 8
2222	
2223	2E0----- 0 0 0 1 0 0 0 1
2224	2F0----- 0 0 0 1 0 0 0 0
2225	300----- 0 0 0 0 1 1 1 1
2226	350----- 0 0 0 0 1 1 1 0
2227	
2228	"0" in the above example means switch is off "1" means that it is on.
2229	
2230	
2231	    ShMem address.
2232	
2233	      1 2 3 4 5 6 7 8
2234	
2235	CX00--0 0 1 1 | |   |
2236	DX00--0 0 1 0       |
2237	X000--------- 1 1   |
2238	X400--------- 1 0   |
2239	X800--------- 0 1   |
2240	XC00--------- 0 0   
2241	ENHANCED----------- 1
2242	COMPATIBLE--------- 0
2243	
2244	
2245	       IRQ
2246	
2247	
2248	   3 4 5 7 2
2249	   . . . . .
2250	   . . . . .
2251	
2252	
2253	There is a DIP-switch with 8 switches, used to set the shared memory address
2254	to be used. The first 6 switches set the address, the 7th doesn't have any
2255	function, and the 8th switch is used to select "compatible" or "enhanced".
2256	When I got my two cards, one of them had this switch set to "enhanced". That
2257	card didn't work at all, it wasn't even recognized by the driver. The other
2258	card had this switch set to "compatible" and it behaved absolutely normally. I
2259	guess that the switch on one of the cards, must have been changed accidentally
2260	when the card was taken out of its former host. The question remains
2261	unanswered, what is the purpose of the "enhanced" position?
2262	
2263	[Avery's note: "enhanced" probably either disables shared memory (use IO
2264	ports instead) or disables IO ports (use memory addresses instead).  This
2265	varies by the type of card involved.  I fail to see how either of these
2266	enhance anything.  Send me more detailed information about this mode, or
2267	just use "compatible" mode instead.]
2268	
2269	
2270	*****************************************************************************
2271	
2272	** Waterloo Microsystems Inc. ?? **
2273	8-bit card (C) 1985
2274	-------------------
2275	  - from Robert Michael Best <rmb117@cs.usask.ca>
2276	
2277	[Avery's note: these don't work with my driver for some reason.  These cards
2278	SEEM to have settings similar to the PDI508Plus, which is
2279	software-configured and doesn't work with my driver either.  The "Waterloo
2280	chip" is a boot PROM, probably designed specifically for the University of
2281	Waterloo.  If you have any further information about this card, please
2282	e-mail me.]
2283	
2284	The probe has not been able to detect the card on any of the J2 settings,
2285	and I tried them again with the "Waterloo" chip removed.
2286	 
2287	 _____________________________________________________________________
2288	| \/  \/              ___  __ __                                      |
2289	| C4  C4     |^|     | M ||  ^  ||^|                                  |
2290	| --  --     |_|     | 5 ||     || | C3                               |
2291	| \/  \/      C10    |___||     ||_|                                  | 
2292	| C4  C4             _  _ |     |                 ??                  | 
2293	| --  --            | \/ ||     |                                     | 
2294	|                   |    ||     |                                     | 
2295	|                   |    ||  C1 |                                     | 
2296	|                   |    ||     |  \/                            _____|    
2297	|                   | C6 ||     |  C9                           |     |___ 
2298	|                   |    ||     |  --                           | BNC |___| 
2299	|                   |    ||     |          >C7|                 |_____|
2300	|                   |    ||     |                                     |
2301	| __ __             |____||_____|       1 2 3     6                   |
2302	||  ^  |     >C4|                      |o|o|o|o|o|o| J2    >C4|       |
2303	||     |                               |o|o|o|o|o|o|                  |
2304	|| C2  |     >C4|                                          >C4|       |
2305	||     |                                   >C8|                       |
2306	||     |       2 3 4 5 6 7  IRQ                            >C4|       |
2307	||_____|      |o|o|o|o|o|o| J3                                        |
2308	|_______      |o|o|o|o|o|o|                            _______________|
2309	        |                                             |
2310	        |_____________________________________________|
2311	
2312	C1 -- "COM9026
2313	       SMC 8638"
2314	      In a chip socket.
2315	
2316	C2 -- "@Copyright
2317	       Waterloo Microsystems Inc.
2318	       1985"
2319	      In a chip Socket with info printed on a label covering a round window
2320	      showing the circuit inside. (The window indicates it is an EPROM chip.)
2321	
2322	C3 -- "COM9032
2323	       SMC 8643"
2324	      In a chip socket.
2325	
2326	C4 -- "74LS"
2327	      9 total no sockets.
2328	
2329	M5 -- "50006-136
2330	       20.000000 MHZ
2331	       MTQ-T1-S3
2332	       0 M-TRON 86-40"
2333	      Metallic case with 4 pins, no socket.
2334	
2335	C6 -- "MOSTEK@TC8643
2336	       MK6116N-20
2337	       MALAYSIA"
2338	      No socket.
2339	
2340	C7 -- No stamp or label but in a 20 pin chip socket.
2341	
2342	C8 -- "PAL10L8CN
2343	       8623"
2344	      In a 20 pin socket.
2345	
2346	C9 -- "PAl16R4A-2CN
2347	       8641"
2348	      In a 20 pin socket.
2349	
2350	C10 -- "M8640
2351	          NMC
2352	        9306N"
2353	       In an 8 pin socket.
2354	
2355	?? -- Some components on a smaller board and attached with 20 pins all 
2356	      along the side closest to the BNC connector.  The are coated in a dark 
2357	      resin.
2358	
2359	On the board there are two jumper banks labeled J2 and J3. The 
2360	manufacturer didn't put a J1 on the board. The two boards I have both 
2361	came with a jumper box for each bank.
2362	
2363	J2 -- Numbered 1 2 3 4 5 6. 
2364	      4 and 5 are not stamped due to solder points.
2365	       
2366	J3 -- IRQ 2 3 4 5 6 7
2367	
2368	The board itself has a maple leaf stamped just above the irq jumpers 
2369	and "-2 46-86" beside C2. Between C1 and C6 "ASS 'Y 300163" and "@1986 
2370	CORMAN CUSTOM ELECTRONICS CORP." stamped just below the BNC connector.
2371	Below that "MADE IN CANADA"
2372	
2373	  
2374	*****************************************************************************
2375	
2376	** No Name **
2377	8-bit cards, 16-bit cards
2378	-------------------------
2379	  - from Juergen Seifert <seifert@htwm.de>
2380	  
2381	NONAME 8-BIT ARCNET
2382	===================
2383	
2384	I have named this ARCnet card "NONAME", since there is no name of any
2385	manufacturer on the Installation manual nor on the shipping box. The only
2386	hint to the existence of a manufacturer at all is written in copper,
2387	it is "Made in Taiwan"
2388	
2389	This description has been written by Juergen Seifert <seifert@htwm.de>
2390	using information from the Original
2391	                    "ARCnet Installation Manual"
2392	
2393	
2394	    ________________________________________________________________
2395	   | |STAR| BUS| T/P|                                               |
2396	   | |____|____|____|                                               |
2397	   |                            _____________________               |
2398	   |                           |                     |              |
2399	   |                           |                     |              |
2400	   |                           |                     |              |
2401	   |                           |        SMC          |              |
2402	   |                           |                     |              |
2403	   |                           |       COM90C65      |              |
2404	   |                           |                     |              |
2405	   |                           |                     |              |
2406	   |                           |__________-__________|              |
2407	   |                                                           _____|
2408	   |      _______________                                     |  CN |
2409	   |     | PROM          |                                    |_____|
2410	   |     > SOCKET        |                                          |
2411	   |     |_______________|         1 2 3 4 5 6 7 8  1 2 3 4 5 6 7 8 |
2412	   |                               _______________  _______________ |
2413	   |           |o|o|o|o|o|o|o|o|  |      SW1      ||      SW2      ||
2414	   |           |o|o|o|o|o|o|o|o|  |_______________||_______________||
2415	   |___         2 3 4 5 7 E E R        Node ID       IOB__|__MEM____|
2416	       |        \ IRQ   / T T O                      |
2417	       |__________________1_2_M______________________|
2418	
2419	Legend:
2420	
2421	COM90C65:       ARCnet Probe
2422	S1  1-8:    Node ID Select
2423	S2  1-3:    I/O Base Address Select
2424	    4-6:    Memory Base Address Select
2425	    7-8:    RAM Offset Select
2426	ET1, ET2    Extended Timeout Select
2427	ROM     ROM Enable Select
2428	CN              RG62 Coax Connector
2429	STAR| BUS | T/P Three fields for placing a sign (colored circle)
2430	                indicating the topology of the card
2431	
2432	Setting one of the switches to Off means "1", On means "0".
2433	
2434	
2435	Setting the Node ID
2436	-------------------
2437	
2438	The eight switches in group SW1 are used to set the node ID.
2439	Each node attached to the network must have an unique node ID which
2440	must be different from 0.
2441	Switch 8 serves as the least significant bit (LSB).
2442	
2443	The node ID is the sum of the values of all switches set to "1"  
2444	These values are:
2445	
2446	    Switch | Value
2447	    -------|-------
2448	      8    |   1
2449	      7    |   2
2450	      6    |   4
2451	      5    |   8
2452	      4    |  16
2453	      3    |  32
2454	      2    |  64
2455	      1    | 128
2456	
2457	Some Examples:
2458	
2459	    Switch         | Hex     | Decimal 
2460	   1 2 3 4 5 6 7 8 | Node ID | Node ID
2461	   ----------------|---------|---------
2462	   0 0 0 0 0 0 0 0 |    not allowed
2463	   0 0 0 0 0 0 0 1 |    1    |    1 
2464	   0 0 0 0 0 0 1 0 |    2    |    2
2465	   0 0 0 0 0 0 1 1 |    3    |    3
2466	       . . .       |         |
2467	   0 1 0 1 0 1 0 1 |   55    |   85
2468	       . . .       |         |
2469	   1 0 1 0 1 0 1 0 |   AA    |  170
2470	       . . .       |         |  
2471	   1 1 1 1 1 1 0 1 |   FD    |  253
2472	   1 1 1 1 1 1 1 0 |   FE    |  254
2473	   1 1 1 1 1 1 1 1 |   FF    |  255
2474	
2475	
2476	Setting the I/O Base Address
2477	----------------------------
2478	
2479	The first three switches in switch group SW2 are used to select one
2480	of eight possible I/O Base addresses using the following table
2481	
2482	   Switch      | Hex I/O
2483	    1   2   3  | Address
2484	   ------------|--------
2485	   ON  ON  ON  |  260
2486	   ON  ON  OFF |  290
2487	   ON  OFF ON  |  2E0  (Manufacturer's default)
2488	   ON  OFF OFF |  2F0
2489	   OFF ON  ON  |  300
2490	   OFF ON  OFF |  350
2491	   OFF OFF ON  |  380
2492	   OFF OFF OFF |  3E0
2493	
2494	
2495	Setting the Base Memory (RAM) buffer Address
2496	--------------------------------------------
2497	
2498	The memory buffer requires 2K of a 16K block of RAM. The base of this
2499	16K block can be located in any of eight positions.
2500	Switches 4-6 of switch group SW2 select the Base of the 16K block.
2501	Within that 16K address space, the buffer may be assigned any one of four
2502	positions, determined by the offset, switches 7 and 8 of group SW2.
2503	
2504	   Switch     | Hex RAM | Hex ROM
2505	   4 5 6  7 8 | Address | Address *)
2506	   -----------|---------|-----------
2507	   0 0 0  0 0 |  C0000  |  C2000
2508	   0 0 0  0 1 |  C0800  |  C2000
2509	   0 0 0  1 0 |  C1000  |  C2000
2510	   0 0 0  1 1 |  C1800  |  C2000
2511	              |         |
2512	   0 0 1  0 0 |  C4000  |  C6000
2513	   0 0 1  0 1 |  C4800  |  C6000
2514	   0 0 1  1 0 |  C5000  |  C6000
2515	   0 0 1  1 1 |  C5800  |  C6000
2516	              |         |
2517	   0 1 0  0 0 |  CC000  |  CE000
2518	   0 1 0  0 1 |  CC800  |  CE000
2519	   0 1 0  1 0 |  CD000  |  CE000
2520	   0 1 0  1 1 |  CD800  |  CE000
2521	              |         |
2522	   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
2523	   0 1 1  0 1 |  D0800  |  D2000
2524	   0 1 1  1 0 |  D1000  |  D2000
2525	   0 1 1  1 1 |  D1800  |  D2000
2526	              |         |
2527	   1 0 0  0 0 |  D4000  |  D6000
2528	   1 0 0  0 1 |  D4800  |  D6000
2529	   1 0 0  1 0 |  D5000  |  D6000
2530	   1 0 0  1 1 |  D5800  |  D6000
2531	              |         |
2532	   1 0 1  0 0 |  D8000  |  DA000
2533	   1 0 1  0 1 |  D8800  |  DA000
2534	   1 0 1  1 0 |  D9000  |  DA000
2535	   1 0 1  1 1 |  D9800  |  DA000
2536	              |         |
2537	   1 1 0  0 0 |  DC000  |  DE000
2538	   1 1 0  0 1 |  DC800  |  DE000
2539	   1 1 0  1 0 |  DD000  |  DE000
2540	   1 1 0  1 1 |  DD800  |  DE000
2541	              |         |
2542	   1 1 1  0 0 |  E0000  |  E2000
2543	   1 1 1  0 1 |  E0800  |  E2000
2544	   1 1 1  1 0 |  E1000  |  E2000
2545	   1 1 1  1 1 |  E1800  |  E2000
2546	  
2547	*) To enable the 8K Boot PROM install the jumper ROM.
2548	   The default is jumper ROM not installed.
2549	
2550	
2551	Setting Interrupt Request Lines (IRQ)
2552	-------------------------------------
2553	
2554	To select a hardware interrupt level set one (only one!) of the jumpers
2555	IRQ2, IRQ3, IRQ4, IRQ5 or IRQ7. The manufacturer's default is IRQ2.
2556	 
2557	
2558	Setting the Timeouts
2559	--------------------
2560	
2561	The two jumpers labeled ET1 and ET2 are used to determine the timeout
2562	parameters (response and reconfiguration time). Every node in a network
2563	must be set to the same timeout values.
2564	
2565	   ET1 ET2 | Response Time (us) | Reconfiguration Time (ms)
2566	   --------|--------------------|--------------------------
2567	   Off Off |        78          |          840   (Default)
2568	   Off On  |       285          |         1680
2569	   On  Off |       563          |         1680
2570	   On  On  |      1130          |         1680
2571	
2572	On means jumper installed, Off means jumper not installed
2573	
2574	
2575	NONAME 16-BIT ARCNET
2576	====================
2577	
2578	The manual of my 8-Bit NONAME ARCnet Card contains another description
2579	of a 16-Bit Coax / Twisted Pair Card. This description is incomplete,
2580	because there are missing two pages in the manual booklet. (The table
2581	of contents reports pages ... 2-9, 2-11, 2-12, 3-1, ... but inside
2582	the booklet there is a different way of counting ... 2-9, 2-10, A-1,
2583	(empty page), 3-1, ..., 3-18, A-1 (again), A-2)
2584	Also the picture of the board layout is not as good as the picture of
2585	8-Bit card, because there isn't any letter like "SW1" written to the
2586	picture.
2587	Should somebody have such a board, please feel free to complete this
2588	description or to send a mail to me!
2589	
2590	This description has been written by Juergen Seifert <seifert@htwm.de>
2591	using information from the Original
2592	                    "ARCnet Installation Manual"
2593	
2594	
2595	   ___________________________________________________________________
2596	  <                    _________________  _________________           |
2597	  >                   |       SW?       ||      SW?        |          |
2598	  <                   |_________________||_________________|          |
2599	  >                       ____________________                        |
2600	  <                      |                    |                       |
2601	  >                      |                    |                       |
2602	  <                      |                    |                       |
2603	  >                      |                    |                       |
2604	  <                      |                    |                       |
2605	  >                      |                    |                       |
2606	  <                      |                    |                       |
2607	  >                      |____________________|                       |
2608	  <                                                               ____|
2609	  >                       ____________________                   |    |
2610	  <                      |                    |                  | J1 |
2611	  >                      |                    <                  |    |
2612	  <                      |____________________|  ? ? ? ? ? ?     |____|
2613	  >                                             |o|o|o|o|o|o|         |
2614	  <                                             |o|o|o|o|o|o|         |
2615	  >                                                                   |
2616	  <             __                                         ___________|
2617	  >            |  |                                       |
2618	  <____________|  |_______________________________________|
2619	
2620	
2621	Setting one of the switches to Off means "1", On means "0".
2622	
2623	
2624	Setting the Node ID
2625	-------------------
2626	
2627	The eight switches in group SW2 are used to set the node ID.
2628	Each node attached to the network must have an unique node ID which
2629	must be different from 0.
2630	Switch 8 serves as the least significant bit (LSB).
2631	
2632	The node ID is the sum of the values of all switches set to "1"  
2633	These values are:
2634	
2635	    Switch | Value
2636	    -------|-------
2637	      8    |   1
2638	      7    |   2
2639	      6    |   4
2640	      5    |   8
2641	      4    |  16
2642	      3    |  32
2643	      2    |  64
2644	      1    | 128
2645	
2646	Some Examples:
2647	
2648	    Switch         | Hex     | Decimal 
2649	   1 2 3 4 5 6 7 8 | Node ID | Node ID
2650	   ----------------|---------|---------
2651	   0 0 0 0 0 0 0 0 |    not allowed
2652	   0 0 0 0 0 0 0 1 |    1    |    1 
2653	   0 0 0 0 0 0 1 0 |    2    |    2
2654	   0 0 0 0 0 0 1 1 |    3    |    3
2655	       . . .       |         |
2656	   0 1 0 1 0 1 0 1 |   55    |   85
2657	       . . .       |         |
2658	   1 0 1 0 1 0 1 0 |   AA    |  170
2659	       . . .       |         |  
2660	   1 1 1 1 1 1 0 1 |   FD    |  253
2661	   1 1 1 1 1 1 1 0 |   FE    |  254
2662	   1 1 1 1 1 1 1 1 |   FF    |  255
2663	
2664	
2665	Setting the I/O Base Address
2666	----------------------------
2667	
2668	The first three switches in switch group SW1 are used to select one
2669	of eight possible I/O Base addresses using the following table
2670	
2671	   Switch      | Hex I/O
2672	    3   2   1  | Address
2673	   ------------|--------
2674	   ON  ON  ON  |  260
2675	   ON  ON  OFF |  290
2676	   ON  OFF ON  |  2E0  (Manufacturer's default)
2677	   ON  OFF OFF |  2F0
2678	   OFF ON  ON  |  300
2679	   OFF ON  OFF |  350
2680	   OFF OFF ON  |  380
2681	   OFF OFF OFF |  3E0
2682	
2683	
2684	Setting the Base Memory (RAM) buffer Address
2685	--------------------------------------------
2686	
2687	The memory buffer requires 2K of a 16K block of RAM. The base of this
2688	16K block can be located in any of eight positions.
2689	Switches 6-8 of switch group SW1 select the Base of the 16K block.
2690	Within that 16K address space, the buffer may be assigned any one of four
2691	positions, determined by the offset, switches 4 and 5 of group SW1.
2692	
2693	   Switch     | Hex RAM | Hex ROM
2694	   8 7 6  5 4 | Address | Address
2695	   -----------|---------|-----------
2696	   0 0 0  0 0 |  C0000  |  C2000
2697	   0 0 0  0 1 |  C0800  |  C2000
2698	   0 0 0  1 0 |  C1000  |  C2000
2699	   0 0 0  1 1 |  C1800  |  C2000
2700	              |         |
2701	   0 0 1  0 0 |  C4000  |  C6000
2702	   0 0 1  0 1 |  C4800  |  C6000
2703	   0 0 1  1 0 |  C5000  |  C6000
2704	   0 0 1  1 1 |  C5800  |  C6000
2705	              |         |
2706	   0 1 0  0 0 |  CC000  |  CE000
2707	   0 1 0  0 1 |  CC800  |  CE000
2708	   0 1 0  1 0 |  CD000  |  CE000
2709	   0 1 0  1 1 |  CD800  |  CE000
2710	              |         |
2711	   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
2712	   0 1 1  0 1 |  D0800  |  D2000
2713	   0 1 1  1 0 |  D1000  |  D2000
2714	   0 1 1  1 1 |  D1800  |  D2000
2715	              |         |
2716	   1 0 0  0 0 |  D4000  |  D6000
2717	   1 0 0  0 1 |  D4800  |  D6000
2718	   1 0 0  1 0 |  D5000  |  D6000
2719	   1 0 0  1 1 |  D5800  |  D6000
2720	              |         |
2721	   1 0 1  0 0 |  D8000  |  DA000
2722	   1 0 1  0 1 |  D8800  |  DA000
2723	   1 0 1  1 0 |  D9000  |  DA000
2724	   1 0 1  1 1 |  D9800  |  DA000
2725	              |         |
2726	   1 1 0  0 0 |  DC000  |  DE000
2727	   1 1 0  0 1 |  DC800  |  DE000
2728	   1 1 0  1 0 |  DD000  |  DE000
2729	   1 1 0  1 1 |  DD800  |  DE000
2730	              |         |
2731	   1 1 1  0 0 |  E0000  |  E2000
2732	   1 1 1  0 1 |  E0800  |  E2000
2733	   1 1 1  1 0 |  E1000  |  E2000
2734	   1 1 1  1 1 |  E1800  |  E2000
2735	  
2736	
2737	Setting Interrupt Request Lines (IRQ)
2738	-------------------------------------
2739	
2740	??????????????????????????????????????
2741	
2742	
2743	Setting the Timeouts
2744	--------------------
2745	
2746	??????????????????????????????????????
2747	
2748	
2749	*****************************************************************************
2750	
2751	** No Name **
2752	8-bit cards ("Made in Taiwan R.O.C.")
2753	-----------
2754	  - from Vojtech Pavlik <vojtech@suse.cz>
2755	
2756	I have named this ARCnet card "NONAME", since I got only the card with
2757	no manual at all and the only text identifying the manufacturer is 
2758	"MADE IN TAIWAN R.O.C" printed on the card.
2759	
2760	          ____________________________________________________________
2761	         |                 1 2 3 4 5 6 7 8                            |
2762	         | |o|o| JP1       o|o|o|o|o|o|o|o| ON                        |
2763	         |  +              o|o|o|o|o|o|o|o|                        ___|
2764	         |  _____________  o|o|o|o|o|o|o|o| OFF         _____     |   | ID7
2765	         | |             | SW1                         |     |    |   | ID6
2766	         | > RAM (2k)    |        ____________________ |  H  |    | S | ID5
2767	         | |_____________|       |                    ||  y  |    | W | ID4
2768	         |                       |                    ||  b  |    | 2 | ID3
2769	         |                       |                    ||  r  |    |   | ID2
2770	         |                       |                    ||  i  |    |   | ID1
2771	         |                       |       90C65        ||  d  |    |___| ID0
2772	         |      SW3              |                    ||     |        |      
2773	         | |o|o|o|o|o|o|o|o| ON  |                    ||  I  |        |
2774	         | |o|o|o|o|o|o|o|o|     |                    ||  C  |        |
2775	         | |o|o|o|o|o|o|o|o| OFF |____________________||     |   _____|
2776	         |  1 2 3 4 5 6 7 8                            |     |  |     |___
2777	         |  ______________                             |     |  | BNC |___|
2778	         | |              |                            |_____|  |_____|
2779	         | > EPROM SOCKET |                                           |
2780	         | |______________|                                           |
2781	         |                                              ______________|
2782	         |                                             |
2783	         |_____________________________________________|
2784	
2785	Legend:
2786	
2787	90C65       ARCNET Chip 
2788	SW1 1-5:    Base Memory Address Select
2789	    6-8:    Base I/O Address Select
2790	SW2 1-8:    Node ID Select (ID0-ID7)
2791	SW3 1-5:    IRQ Select   
2792	    6-7:    Extra Timeout
2793	    8  :    ROM Enable   
2794	JP1         Led connector
2795	BNC         Coax connector
2796	
2797	Although the jumpers SW1 and SW3 are marked SW, not JP, they are jumpers, not 
2798	switches.
2799	
2800	Setting the jumpers to ON means connecting the upper two pins, off the bottom 
2801	two - or - in case of IRQ setting, connecting none of them at all.
2802	
2803	Setting the Node ID
2804	-------------------
2805	
2806	The eight switches in SW2 are used to set the node ID. Each node attached
2807	to the network must have an unique node ID which must not be 0.
2808	Switch 1 (ID0) serves as the least significant bit (LSB).
2809	
2810	Setting one of the switches to Off means "1", On means "0".
2811	
2812	The node ID is the sum of the values of all switches set to "1"  
2813	These values are:
2814	
2815	   Switch | Label | Value
2816	   -------|-------|-------
2817	     1    | ID0   |   1
2818	     2    | ID1   |   2
2819	     3    | ID2   |   4
2820	     4    | ID3   |   8
2821	     5    | ID4   |  16
2822	     6    | ID5   |  32
2823	     7    | ID6   |  64
2824	     8    | ID7   | 128
2825	
2826	Some Examples:
2827	
2828	    Switch         | Hex     | Decimal 
2829	   8 7 6 5 4 3 2 1 | Node ID | Node ID
2830	   ----------------|---------|---------
2831	   0 0 0 0 0 0 0 0 |    not allowed
2832	   0 0 0 0 0 0 0 1 |    1    |    1 
2833	   0 0 0 0 0 0 1 0 |    2    |    2
2834	   0 0 0 0 0 0 1 1 |    3    |    3
2835	       . . .       |         |
2836	   0 1 0 1 0 1 0 1 |   55    |   85
2837	       . . .       |         |
2838	   1 0 1 0 1 0 1 0 |   AA    |  170
2839	       . . .       |         |  
2840	   1 1 1 1 1 1 0 1 |   FD    |  253
2841	   1 1 1 1 1 1 1 0 |   FE    |  254
2842	   1 1 1 1 1 1 1 1 |   FF    |  255
2843	
2844	
2845	Setting the I/O Base Address
2846	----------------------------
2847	
2848	The last three switches in switch block SW1 are used to select one
2849	of eight possible I/O Base addresses using the following table
2850	
2851	
2852	   Switch      | Hex I/O
2853	    6   7   8  | Address
2854	   ------------|--------
2855	   ON  ON  ON  |  260
2856	   OFF ON  ON  |  290
2857	   ON  OFF ON  |  2E0  (Manufacturer's default)
2858	   OFF OFF ON  |  2F0
2859	   ON  ON  OFF |  300
2860	   OFF ON  OFF |  350
2861	   ON  OFF OFF |  380
2862	   OFF OFF OFF |  3E0
2863	
2864	
2865	Setting the Base Memory (RAM) buffer Address
2866	--------------------------------------------
2867	
2868	The memory buffer (RAM) requires 2K. The base of this buffer can be 
2869	located in any of eight positions. The address of the Boot Prom is
2870	memory base + 0x2000.
2871	Jumpers 3-5 of jumper block SW1 select the Memory Base address.
2872	
2873	   Switch              | Hex RAM | Hex ROM
2874	    1   2   3   4   5  | Address | Address *)
2875	   --------------------|---------|-----------
2876	   ON  ON  ON  ON  ON  |  C0000  |  C2000
2877	   ON  ON  OFF ON  ON  |  C4000  |  C6000
2878	   ON  ON  ON  OFF ON  |  CC000  |  CE000
2879	   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
2880	   ON  ON  ON  ON  OFF |  D4000  |  D6000
2881	   ON  ON  OFF ON  OFF |  D8000  |  DA000
2882	   ON  ON  ON  OFF OFF |  DC000  |  DE000
2883	   ON  ON  OFF OFF OFF |  E0000  |  E2000
2884	  
2885	*) To enable the Boot ROM set the jumper 8 of jumper block SW3 to position ON.
2886	
2887	The jumpers 1 and 2 probably add 0x0800, 0x1000 and 0x1800 to RAM adders.
2888	
2889	Setting the Interrupt Line
2890	--------------------------
2891	
2892	Jumpers 1-5 of the jumper block SW3 control the IRQ level.
2893	
2894	    Jumper              |  IRQ
2895	    1   2   3   4   5   |
2896	   ----------------------------
2897	    ON  OFF OFF OFF OFF |  2
2898	    OFF ON  OFF OFF OFF |  3
2899	    OFF OFF ON  OFF OFF |  4
2900	    OFF OFF OFF ON  OFF |  5
2901	    OFF OFF OFF OFF ON  |  7
2902	
2903	
2904	Setting the Timeout Parameters
2905	------------------------------
2906	
2907	The jumpers 6-7 of the jumper block SW3 are used to determine the timeout 
2908	parameters. These two jumpers are normally left in the OFF position.
2909	
2910	
2911	*****************************************************************************
2912	
2913	** No Name **
2914	(Generic Model 9058)
2915	--------------------
2916	  - from Andrew J. Kroll <ag784@freenet.buffalo.edu>
2917	  - Sorry this sat in my to-do box for so long, Andrew! (yikes - over a
2918	    year!)
2919	                                                                      _____
2920	                                                                     |    <
2921	                                                                     | .---'
2922	    ________________________________________________________________ | |
2923	   |                           |     SW2     |                      |  |
2924	   |   ___________             |_____________|                      |  |
2925	   |  |           |              1 2 3 4 5 6                     ___|  |
2926	   |  >  6116 RAM |         _________                         8 |   |  |
2927	   |  |___________|        |20MHzXtal|                        7 |   |  |
2928	   |                       |_________|       __________       6 | S |  |
2929	   |    74LS373                             |          |-     5 | W |  |
2930	   |   _________                            |      E   |-     4 |   |  |
2931	   |   >_______|              ______________|..... P   |-     3 | 3 |  |
2932	   |                         |              |    : O   |-     2 |   |  |
2933	   |                         |              |    : X   |-     1 |___|  |
2934	   |   ________________      |              |    : Y   |-           |  |
2935	   |  |      SW1       |     |      SL90C65 |    :     |-           |  |
2936	   |  |________________|     |              |    : B   |-           |  |
2937	   |    1 2 3 4 5 6 7 8      |              |    : O   |-           |  |
2938	   |                         |_________o____|..../ A   |-    _______|  |
2939	   |    ____________________                |      R   |-   |       |------,   
2940	   |   |                    |               |      D   |-   |  BNC  |   #  |
2941	   |   > 2764 PROM SOCKET   |               |__________|-   |_______|------'
2942	   |   |____________________|              _________                |  |
2943	   |                                       >________| <- 74LS245    |  |
2944	   |                                                                |  |
2945	   |___                                               ______________|  |
2946	       |H H H H H H H H H H H H H H H H H H H H H H H|               | |
2947	       |U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U|               | |
2948	                                                                      \|
2949	Legend:
2950	
2951	SL90C65 	ARCNET Controller / Transceiver /Logic
2952	SW1	1-5:	IRQ Select
2953		  6:	ET1
2954		  7:	ET2
2955		  8:	ROM ENABLE 
2956	SW2	1-3:    Memory Buffer/PROM Address
2957		3-6:	I/O Address Map
2958	SW3	1-8:	Node ID Select
2959	BNC		BNC RG62/U Connection 
2960			*I* have had success using RG59B/U with *NO* terminators!
2961			What gives?!
2962	
2963	SW1: Timeouts, Interrupt and ROM
2964	---------------------------------
2965	
2966	To select a hardware interrupt level set one (only one!) of the dip switches
2967	up (on) SW1...(switches 1-5)
2968	IRQ3, IRQ4, IRQ5, IRQ7, IRQ2. The Manufacturer's default is IRQ2.
2969	
2970	The switches on SW1 labeled EXT1 (switch 6) and EXT2 (switch 7)
2971	are used to determine the timeout parameters. These two dip switches
2972	are normally left off (down).
2973	
2974	   To enable the 8K Boot PROM position SW1 switch 8 on (UP) labeled ROM.
2975	   The default is jumper ROM not installed.
2976	
2977	
2978	Setting the I/O Base Address
2979	----------------------------
2980	
2981	The last three switches in switch group SW2 are used to select one
2982	of eight possible I/O Base addresses using the following table
2983	
2984	
2985	   Switch | Hex I/O
2986	   4 5 6  | Address
2987	   -------|--------
2988	   0 0 0  |  260
2989	   0 0 1  |  290
2990	   0 1 0  |  2E0  (Manufacturer's default)
2991	   0 1 1  |  2F0
2992	   1 0 0  |  300
2993	   1 0 1  |  350
2994	   1 1 0  |  380
2995	   1 1 1  |  3E0
2996	
2997	
2998	Setting the Base Memory Address (RAM & ROM)
2999	-------------------------------------------
3000	
3001	The memory buffer requires 2K of a 16K block of RAM. The base of this
3002	16K block can be located in any of eight positions.
3003	Switches 1-3 of switch group SW2 select the Base of the 16K block.
3004	(0 = DOWN, 1 = UP)
3005	I could, however, only verify two settings...
3006	
3007	   Switch| Hex RAM | Hex ROM
3008	   1 2 3 | Address | Address
3009	   ------|---------|-----------
3010	   0 0 0 |  E0000  |  E2000
3011	   0 0 1 |  D0000  |  D2000  (Manufacturer's default)
3012	   0 1 0 |  ?????  |  ?????
3013	   0 1 1 |  ?????  |  ?????  
3014	   1 0 0 |  ?????  |  ?????
3015	   1 0 1 |  ?????  |  ?????
3016	   1 1 0 |  ?????  |  ?????
3017	   1 1 1 |  ?????  |  ?????
3018	
3019	
3020	Setting the Node ID
3021	-------------------
3022	
3023	The eight switches in group SW3 are used to set the node ID.
3024	Each node attached to the network must have an unique node ID which
3025	must be different from 0.
3026	Switch 1 serves as the least significant bit (LSB).
3027	switches in the DOWN position are OFF (0) and in the UP position are ON (1)
3028	
3029	The node ID is the sum of the values of all switches set to "1"  
3030	These values are:
3031	    Switch | Value
3032	    -------|-------
3033	      1    |   1
3034	      2    |   2
3035	      3    |   4
3036	      4    |   8
3037	      5    |  16
3038	      6    |  32
3039	      7    |  64
3040	      8    | 128
3041	
3042	Some Examples:
3043	
3044	    Switch#     |   Hex   | Decimal 
3045	8 7 6 5 4 3 2 1 | Node ID | Node ID
3046	----------------|---------|---------
3047	0 0 0 0 0 0 0 0 |    not allowed  <-.
3048	0 0 0 0 0 0 0 1 |    1    |    1    | 
3049	0 0 0 0 0 0 1 0 |    2    |    2    |
3050	0 0 0 0 0 0 1 1 |    3    |    3    |
3051	    . . .       |         |         |
3052	0 1 0 1 0 1 0 1 |   55    |   85    |
3053	    . . .       |         |         + Don't use 0 or 255!
3054	1 0 1 0 1 0 1 0 |   AA    |  170    |
3055	    . . .       |         |         |
3056	1 1 1 1 1 1 0 1 |   FD    |  253    |
3057	1 1 1 1 1 1 1 0 |   FE    |  254    |
3058	1 1 1 1 1 1 1 1 |   FF    |  255  <-'
3059	  
3060	
3061	*****************************************************************************
3062	
3063	** Tiara **
3064	(model unknown)
3065	-------------------------
3066	  - from Christoph Lameter <christoph@lameter.com>
3067	  
3068	
3069	Here is information about my card as far as I could figure it out:
3070	----------------------------------------------- tiara
3071	Tiara LanCard of Tiara Computer Systems.
3072	
3073	+----------------------------------------------+
3074	!           ! Transmitter Unit !               !
3075	!           +------------------+             -------
3076	!          MEM                              Coax Connector
3077	!  ROM    7654321 <- I/O                     -------
3078	!  :  :   +--------+                           !
3079	!  :  :   ! 90C66LJ!                         +++
3080	!  :  :   !        !                         !D  Switch to set
3081	!  :  :   !        !                         !I  the Nodenumber
3082	!  :  :   +--------+                         !P
3083	!                                            !++
3084	!         234567 <- IRQ                      !
3085	+------------!!!!!!!!!!!!!!!!!!!!!!!!--------+
3086	             !!!!!!!!!!!!!!!!!!!!!!!!
3087	
3088	0 = Jumper Installed
3089	1 = Open
3090	
3091	Top Jumper line Bit 7 = ROM Enable 654=Memory location 321=I/O
3092	
3093	Settings for Memory Location (Top Jumper Line)
3094	456     Address selected
3095	000	C0000
3096	001     C4000
3097	010     CC000
3098	011     D0000
3099	100     D4000
3100	101     D8000
3101	110     DC000     
3102	111     E0000
3103	
3104	Settings for I/O Address (Top Jumper Line)
3105	123     Port
3106	000	260
3107	001	290
3108	010	2E0
3109	011	2F0
3110	100	300
3111	101	350
3112	110	380
3113	111	3E0
3114	
3115	Settings for IRQ Selection (Lower Jumper Line)
3116	234567
3117	011111 IRQ 2
3118	101111 IRQ 3
3119	110111 IRQ 4
3120	111011 IRQ 5
3121	111110 IRQ 7
3122	
3123	*****************************************************************************
3124	
3125	
3126	Other Cards
3127	-----------
3128	
3129	I have no information on other models of ARCnet cards at the moment.  Please
3130	send any and all info to:
3131		apenwarr@worldvisions.ca
3132	
3133	Thanks.
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