MAX16067 Datasheet, PDF (25/47 Pages) Maxim Integrated Products – 6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
EN_OUT_s as GPIO
EN_OUT1–EN_OUT6 can be configured as general-pur-
pose inputs by setting the sequencing slot assignments
in r84h–r86h to ‘1101’ or as general-purpose outputs by
setting the slot assignments to ‘1110’. See Tables 5 and
6. If an EN_OUT_ is configured as a general-purpose
input, the state of the GPIO can be read from r1Fh (see
Table 21). If an EN_OUT_ is configured as a general-
purpose output, it is controlled by r34h.
EN_OUT_ State During Power-Up
When VCC is ramped from 0V to the operating sup-
ply voltage, the EN_OUT_ output is high impedance
until VCC reaches UVLO and then EN_OUT_ goes into
the configured deasserted state. See Figures 4 and 5.
Configure RESET as an active-low push-pull or open-
drain output pulled up to VCC through a 10kI resistor
for Figures 4 and 5.
Table 21. EN_OUT_ GPIO State Registers
REGISTER
ADDRESS
1Fh
34h
FLASH
ADDRESS
—
234h
BIT RANGE
[0]
[1]
[2]
[3]
[4]
[5]
[7:6]
[0]
[1]
[2]
[3]
[4]
[5]
[7:6]
EN_OUT1 input state
EN_OUT2 input state
EN_OUT3 input state
EN_OUT4 input state
EN_OUT5 input state
EN_OUT6 input state
Not used
1 = Assert EN_OUT1
1 = Assert EN_OUT2
1 = Assert EN_OUT3
1 = Assert EN_OUT4
1 = Assert EN_OUT5
1 = Assert EN_OUT6
Not used
DESCRIPTION
MAX16067 fig04
20ms/div
VCC
2V/div
0V
RESET
2V/div
0V
EN_OUT_
2V/div
0V
Figure 4. RESET and EN_OUT_ During Power-Up, EN_OUT_ is
in Open-Drain Active-Low Configuration
MAX16067 fig05
UVLO
HIGH-Z
ASSERTED
LOW
10ms/div
V_CC
2V/div
0V
RESET
2V/div
0V
EN_OUT_
2V/div
0V
Figure 5. RESET and EN_OUT_ During Power-Up, EN_OUT_ is
in Push-Pull Active-High Configuration
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