Kontron ETXexpress-WPM, Руководство пользователя

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page 80 ETXexpress-WPM User’s Guide
Power and System
Management Pin Type Pwr Rail /
Tolerance
Description
PWRBTN# I
CMOS
3.3V / 3.3V
Suspend Power button to bring system out of S5 (soft off), active on rising edge.
SYS_RESET# I
CMOS
3.3V / 3.3V
Suspend Reset button input. Active low input. System is held in hardware reset
while this input is low, and comes out of reset upon release.
CB_RESET# O
CMOS
3.3V / 3.3V
Suspend 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.
PWR_OK I
CMOS
3.3V / 3.3V Power OK from main power supply. A high value indicates that the
power is good.
SUS_STAT# O
CMOS
3.3V / 3.3V
Suspend Indicates imminent suspend operation; used to notify LPC devices.
SUS_S3# O
CMOS
3.3V / 3.3V
Suspend Indicates system is in Suspend to RAM state. Active low output.
SUS_S4# O
CMOS
3.3V / 3.3V
Suspend Indicates system is in Suspend to Disk state. Active low output.
SUS_S5# O
CMOS
3.3V / 3.3V
Suspend Indicates system is in Soft Off state. Also known as "PS_ON" and can
be used to control an ATX power supply.
WAKE0# I
CMOS
3.3V / 3.3V
Suspend PCI Express wake up signal.
WAKE1# I
CMOS
3.3V / 3.3V
Suspend General purpose wake up signal. May be used to implement wake-up
on PS2 keyboard or mouse activity.
BATLOW# I
CMOS
3.3V / 3.3V
Suspend Indicates that external battery is low.
THRM# I
CMOS
3.3V / 3.3V Input from off-module temp sensor indicating an over-temp situation.
THERMTRIP# O
CMOS
3.3V / 3.3V Active low output indicating that the CPU has entered thermal
shutdown.
SMB_CK I/O OD
CMOS
3.3V / 3.3V
Suspend Rail System Management Bus bidirectional clock line. Power sourced
through 5V standby rail and main power rails.
SMB_DAT I/O OD
CMOS
3.3V / 3.3V
Suspend Rail System Management Bus bidirectional data line. Power sourced
through 5V standby rail and main power rails.
SMB_ALERT# I
CMOS
3.3V / 3.3V
Suspend Rail System Management Bus Alert – active low input can be used to
generate an SMI# (System Management Interrupt) or to wake the
system. Power sourced through 5V standby rail and main power rails.
General Purpose I/O Pin Type Pwr Rail /
Tolerance
Description
GPO[0:3] O
CMOS
3.3V / 3.3V General purpose output pins. Upon a hardware reset, these outputs
should be low.
GPI[0:3] I
CMOS
3.3V / 3.3V General purpose input pins. Pulled high internally on the module.