nanoX-EL User’s Guide
PICMG COM.0 R3.0
Page 43
Copyright © 2021 ADLINK Technology, Inc.
4.3.16
Power and System Management
Name
Pin #
Description
I/O
PU / PD
Comment
PWRBTN#
B12
Power button to bring system out of S5 (soft off), active on falling edge.
I 3.3VSB
PU 10K 3.3VSB
SYS_RESET#
B49
Reset button input. Active low request for module to reset and reboot. May be
falling edge sensitive. For situations when SYS_RESET# is not able to reestablish
control of the system, PWR_OK or a power cycle may be used.
I 3.3VSB
PU 10K 3.3VSB
CB_RESET#
B50
Reset output from module to Carrier Board. Active low. Issued by module chipset
and may result from a low SYS_RESET# input, a low PWR_OK input, a VCC_12V
power input that falls below the minimum specification, a watchdog timeout, or
may be initiated by the module software.
O
3.3V
PWR_OK
B24
Power OK from main power supply. A high value indicates that the power is good.
This signal can be used to hold off Module startup to allow carrier-based FPGAs or
other configurable devices time to be programmed.
I 3.3VSB
PU 10K 3.3VSB
Should have weak pull up.
SUS_STAT#
B18
Indicates imminent suspend operation; used to notify LPC devices.
O 3.3VSB
SUS_S3#
A15
Indicates system is in Suspend to RAM state. Active-low output. An inverted copy
of SUS_S3# on the carrier board (also known as “PS_ON”) may be used to enable
the non-standby power on a typical ATX power supply.
O 3.3VSB
PD 100K
SUS_S4#
A18
Indicates system is in Suspend to Disk state. Active low output.
O 3.3VSB
PD 100K
SUS_S5#
A24
Indicates system is in Soft Off state.
O 3.3VSB
PD 100K
WAKE0#
B66
PCI Express wake up signal.
I 3.3VSB
PU 10K 3.3VSB
WAKE1#
B67
General purpose wake-up signal. May be used to implement wake-up on PS/2
keyboard or mouse activity.
I 3.3VSB
PU 10K 3.3VSB
Connect to WAKE 0#
BATLOW#
A27
Battery low input. This signal may be driven low by external circuitry to signal that
the system battery is low or may be used to signal some other external power-
management event.
I 3.3VSB
PU 10K 3.3VSB
LID#
A103
LID button. Low active signal used by the ACPI operating system for a LID switch.
I OD 3.3VSB
PU 47K 3.3VSB
Emulated on GPIO (BIOS)
SLEEP#
B103
Sleep button. Low active signal used by the ACPI operating system to bring the
system to sleep state or to wake it up again.
I OD 3.3VSB
PU 47K 3.3VSB
Emulated on GPIO (BIOS)
