Watchdog; System Management - Avnet SMARC MSC SM2S-IMX8MINI User Manual

4.13 Watchdog

Pin
Signal Signal Level
Type
WDT_TIME_OUT# O PP 1.8V CMOS

4.14 System Management

Pin
Signal
Type
VIN_PWR_BAD# I OD
CARRIER_PWR_ ON O PP
CARRIER_STBY# O PP
RESET_OUT# O PP
RESET_IN# I OD
POWER_BTN# I
MSC SM2S-IMX8MINI
User Manual
Table 18: Watchdog Signal Description
Pin on Pin name on
i.MX8M Mini i.MX8M Mini
AG13 GPIO1_IO02
Table 19: System Management Signal Description
Pin on Pin name on
Signal Level
i.MX8M Mini i.MX8M Mini
1.8V n.a. n.a.
1.8V CMOS n.a. n.a.
1.8V CMOS n.a. n.a.
1.8V CMOS AD19 SAI2_MCLK
1.8V CMOS n.a. n.a.
1.8V CMOS n.a. n.a.
Power
PU/PD
Tolerance
1.8V
Power
PU/PD
Tolerance
5.0V PU 18K Vin
PD 10K
1.8V
1.8V
1.8V
1.8V PU 18k Vin
PD 10K
1.8V PU 10k 1V8
Description
Watch-Dog-Timer Output from the SOC.
Description
Pulled low at carrier until external power supply
is ready. Pulled-up at module by voltage
divider. Should be driven by OD part on carrier.
Carrier board circuits should not be powered up
until module asserts this signal.
Module asserts this signal to indicate standby
power state.
General purpose reset for carrier board.
(CPU GPIO4_IO27)
Reset input from Carrier board. Carrier drives
low to force a Module reset, floats the line
otherwise. Pulled up on module. Should be
driven by OD part on carrier.
Power button to bring system into a power
state. Pulled up on module. Driven by OD part
on carrier.
Do not connect any Pull-down or Pull-up
resistors on Carrier.
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