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r: 4646
b: refs/heads/master
c: 089bd86
h: refs/heads/master
v: v3
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Jean Delvare authored and Greg Kroah-Hartman committed Jul 11, 2005
1 parent 017663e commit 9512e23
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 9ab1ee2ab7d65979c0f14a60ee1f29f8988f5811
refs/heads/master: 089bd86632769051f15cd7387eebe126d18f151f
22 changes: 17 additions & 5 deletions trunk/Documentation/i2c/chips/max6875
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Expand Up @@ -2,10 +2,10 @@ Kernel driver max6875
=====================

Supported chips:
* Maxim max6874, max6875
Prefixes: 'max6875'
* Maxim MAX6874, MAX6875
Prefix: 'max6875'
Addresses scanned: 0x50, 0x52
Datasheets:
Datasheet:
http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf

Author: Ben Gardner <bgardner@wabtec.com>
Expand All @@ -23,14 +23,26 @@ Module Parameters
Description
-----------

The MAXIM max6875 is a EEPROM-programmable power-supply sequencer/supervisor.
The Maxim MAX6875 is an EEPROM-programmable power-supply sequencer/supervisor.
It provides timed outputs that can be used as a watchdog, if properly wired.
It also provides 512 bytes of user EEPROM.

At reset, the max6875 reads the configuration eeprom into its configuration
At reset, the MAX6875 reads the configuration EEPROM into its configuration
registers. The chip then begins to operate according to the values in the
registers.

The Maxim MAX6874 is a similar, mostly compatible device, with more intputs
and outputs:

vin gpi vout
MAX6874 6 4 8
MAX6875 4 3 5

MAX6874 chips can have four different addresses (as opposed to only two for
the MAX6875). The additional addresses (0x54 and 0x56) are not probed by
this driver by default, but the probe module parameter can be used if
needed.

See the datasheet for details on how to program the EEPROM.


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