MAX16047A Datasheet, PDF (20/61 Pages) Maxim Integrated Products – 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers

12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
General-Purpose Inputs/Outputs
GPIO1–GPIO6 are programmable general-purpose
inputs/outputs. GPIO1–GPIO6 are configurable as a
manual reset input, a margin disable input, a watchdog
timer input and output, logic inputs/outputs, fault-
dependent outputs, or as the feedback inputs (INS_)
for closed-loop tracking. When programmed as out-
puts, GPIOs are open drain or push-pull. See registers
r1Ch to r1Eh in Tables 4 and 5 for more detailed infor-
mation on configuring GPIO1–GPIO6.
Table 4. General-Purpose IO Configuration Registers
REGISTER/
EEPROM ADDRESS
1Ch
1Dh
1Eh
BIT RANGE
[2:0]
[5:3]
[7:6]
[0]
[3:1]
[6:4]
[7]
[1:0]
[7:2]
DESCRIPTION
GPIO1 Configuration Register
GPIO2 Configuration Register
GPIO3 Configuration Register (LSB)
GPIO3 Configuration Register (MSB)
GPIO4 Configuration Register
GPIO5 Configuration Register
GPIO6 Configuration Register (LSB)
GPIO6 Configuration Register (MSB)
Reserved
Table 5. GPIO Mode Selection
CONFIGURATION
BITS
000
001
GPIO1
INS1
Push-pull logic
input/output
GPIO2
INS2
Push-pull logic
input/output
GPIO3
INS3
Push-pull logic
input/ output
GPIO4
INS4
Push-pull logic
input/output
GPIO5
—
Push-pull logic
input/output
GPIO6
MARGIN input
Push-pull logic
input/output
Open-drain
Open-drain
Open-drain
Open-drain
Open-drain
Open-drain
010
logic
logic
logic input/
logic
logic input/
logic input/
input/output
input/output
output
input/output
output
output
011
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Any_Fault output Any_Fault output Any_Fault output Any_Fault output FAULT1 output FAULT2 output
100
Open-drain
Open-drain
Open-drain
Open-drain
Open-drain
Open-drain
Any_Fault output Any_Fault output Any_Fault output Any_Fault output FAULT1 output FAULT2 output
101
Logic input
Logic input
Logic input
Logic input
Logic input
Logic input
110
—
—
—
—
—
Open-drain
WDO output
111
—
—
—
MR input
WDI input
Note: The dash “—” represents a reserved GPIO configuration. Do not set any GPIO to these values.
Open-drain
FAULTPU output
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