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Based on kernel version 3.2. Page generated on 2012-01-05 23:28 EST.

1	Kernel driver mc13783-adc
2	=========================
3	
4	Supported chips:
5	  * Freescale Atlas MC13783
6	    Prefix: 'mc13783_adc'
7	    Datasheet: http://www.freescale.com/files/rf_if/doc/data_sheet/MC13783.pdf?fsrch=1
8	
9	Authors:
10	    Sascha Hauer <s.hauer@pengutronix.de>
11	    Luotao Fu <l.fu@pengutronix.de>
12	
13	Description
14	-----------
15	
16	The Freescale MC13783 is a Power Management and Audio Circuit. Among
17	other things it contains a 10-bit A/D converter. The converter has 16
18	channels which can be used in different modes.
19	The A/D converter has a resolution of 2.25mV. Channels 0-4 have
20	a dedicated meaning with chip internal scaling applied. Channels 5-7
21	can be used as general purpose inputs or alternatively in a dedicated
22	mode. Channels 12-15 are occupied by the touchscreen if it's active.
23	
24	Currently the driver only supports channels 2 and 5-15 with no alternative
25	modes for channels 5-7.
26	
27	See this table for the meaning of the different channels and their chip
28	internal scaling:
29	
30	Channel	Signal						Input Range	Scaling
31	-------------------------------------------------------------------------------
32	0	Battery Voltage (BATT)				2.50 - 4.65V	-2.40V
33	1	Battery Current (BATT - BATTISNS)		-50 - 50 mV	x20
34	2	Application Supply (BP)				2.50 - 4.65V	-2.40V
35	3	Charger Voltage (CHRGRAW)			0 - 10V /	/5
36								0 - 20V		/10
37	4	Charger Current (CHRGISNSP-CHRGISNSN)		-0.25V - 0.25V	x4
38	5	General Purpose ADIN5 / Battery Pack Thermistor	0 - 2.30V	No
39	6	General Purpose ADIN6 / Backup Voltage (LICELL)	0 - 2.30V /	No /
40								1.50 - 3.50V	-1.20V
41	7	General Purpose ADIN7 / UID / Die Temperature	0 - 2.30V /	No /
42								0 - 2.55V /	x0.9 / No
43	8	General Purpose ADIN8				0 - 2.30V	No
44	9	General Purpose ADIN9				0 - 2.30V	No
45	10	General Purpose ADIN10				0 - 2.30V	No
46	11	General Purpose ADIN11				0 - 2.30V	No
47	12	General Purpose TSX1 / Touchscreen X-plate 1	0 - 2.30V	No
48	13	General Purpose TSX2 / Touchscreen X-plate 2	0 - 2.30V	No
49	14	General Purpose TSY1 / Touchscreen Y-plate 1	0 - 2.30V	No
50	15	General Purpose TSY2 / Touchscreen Y-plate 2	0 - 2.30V	No
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