MAX16070 Datasheet, PDF (18/52 Pages) Maxim Integrated Products – 12-Channel/8-Channel, Flash-Configurable System Monitors with Nonvolatile Fault Registers

12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
General-Purpose Inputs/Outputs
GPIO1 to GPIO8 are programmable general-purpose
inputs/outputs. GPIO1–GPIO8 are configurable as a
manual reset input, a watchdog timer input and output,
logic inputs/outputs, fault-dependent outputs. When pro-
grammed as outputs, GPIO_s are open drain or push-
pull. See Tables 8 and 9 for more detailed information on
configuring GPIO1 to GPIO8.
When GPIO1 to GPIO8 are configured as general-pur-
pose inputs/outputs, read values from the GPIO_ ports
through r1Eh and write values to GPIO_s through r3Eh.
Note that r3Eh has a corresponding flash register, which
programs the default state of a general-purpose output.
See Table 7 for more information on reading and writing
to the GPIO_.
Table 7. GPIO_ State Registers
REGISTER
ADDRESS
FLASH
ADDRESS
1Eh
—
3Eh
23Eh
BIT RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
GPIO1 input state
GPIO2 input state
GPIO3 input state
GPIO4 input state
GPIO5 input state
GPIO6 input state
GPIO7 input state
GPIO8 input state
GPIO1 output state
GPIO2 output state
GPIO3 output state
GPIO4 output state
GPIO5 output state
GPIO6 output state
GPIO7 output state
GPIO8 output state
DESCRIPTION
Table 8. GPIO_ Configuration Registers
REGISTER
ADDRESS
3Fh
FLASH
ADDRESS
23Fh
40h
240h
41h
241h
BIT RANGE
[2:0]
[5:3]
[7:6]
[0]
[3:1]
[6:4]
[7]
[1:0]
[4:2]
[7:5]
DESCRIPTION
GPIO1 configuration
GPIO2 configuration
GPIO3 configuration (LSB)
GPIO3 configuration (MSB)
GPIO4 configuration
GPIO5 configuration
GPIO6 configuration (LSB)
GPIO6 configuration (MSB)
GPIO7 configuration
GPIO8 configuration
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