5 * Maxim max6874, max6875
7 Addresses scanned: 0x50, 0x52
9 http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf
11 Author: Ben Gardner <bgardner@wabtec.com>
18 Set to non-zero to enable write permission:
26 The MAXIM max6875 is a EEPROM-programmable power-supply sequencer/supervisor.
27 It provides timed outputs that can be used as a watchdog, if properly wired.
28 It also provides 512 bytes of user EEPROM.
30 At reset, the max6875 reads the configuration eeprom into its configuration
31 registers. The chip then begins to operate according to the values in the
34 See the datasheet for details on how to program the EEPROM.
40 eeprom_user - 512 bytes of user-defined EEPROM space. Only writable if
41 allow_write was set and register 0x43 is 0.
43 eeprom_config - 70 bytes of config EEPROM. Note that changes will not get
44 loaded into register space until a power cycle or device reset.
46 reg_config - 70 bytes of register space. Any changes take affect immediately.
52 A typical application will require that the EEPROMs be programmed once and
53 never altered afterwards.