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| author | Thomas Gleixner <tglx@tglx.tec.linutronix.de> | 2005-07-13 10:45:00 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-07-13 10:45:00 +0200 |
| commit | 1b3035b7fcc72b6b36f2a3634dad832eb2453ce8 (patch) | |
| tree | 728174d72943cc9b981a5843553551df62eddc41 /Documentation/i2c/chips/max6875 | |
| parent | a98a5d04f400ad112e59cadd739dbabf89417e60 (diff) | |
| parent | c32511e2718618f0b53479eb36e07439aa363a74 (diff) | |
Merge with rsync://fileserver/linux
Diffstat (limited to 'Documentation/i2c/chips/max6875')
| -rw-r--r-- | Documentation/i2c/chips/max6875 | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/Documentation/i2c/chips/max6875 b/Documentation/i2c/chips/max6875 index b4fb49b4181..b02002898a0 100644 --- a/Documentation/i2c/chips/max6875 +++ b/Documentation/i2c/chips/max6875 @@ -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> @@ -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. |