EGS-MX1
36 EGS-MX1 Quick Reference Guide
LPC_SERIRQ
LPC serial interrupt
2.4.16.1.5 GPIO Signals
Signal
Signal Description
GPI[0:4]
General purpose input pins.
GPO[0:4]
General purpose output pins.
2.4.16.1.6 Power & System Management Signals
Signal
Signal Description
SUS_S3#
Indicates system is in Suspend to RAM state. Active low output.
PWRBTN#
Power button to bring system out of S5 (soft off), active on rising edge.
SMB_SCL_S5
System Management Bus bidirectional clock line.
SMB_SDA_S5
System Management Bus bidirectional data line.
SMB_ALERT#
System Management Bus Alert - input can be used to generate an SMI# (System
Management Interrupt) or to wake the system.
SUS_STAT#/ESPI_RESET# Indicates imminent suspend operation.
PWR_OK
Power OK from main power supply
SYS_RESET#
Reset button input. Active low input.
WAKE0#
PCI Express wake up signal.
WAKE1#
General purpose wake up signal.
2.4.16.1.7 SATA Signals
Signal
Signal Description
SATA[0:2]_TX +/-
Serial ATA Channel 0-2 transmit differential pair.
SATA[0:2]_RX +/-
Serial ATA Channel 0-2 receive differential pair.
ATA_ACT#
ATA (parallel and serial) activity indicator, active low.
2.4.16.1.8 USB Signals
Signal
Signal Description
USB[0:7] +/-
USB differential pairs, channels 0 through 7
USB_0_1_OC#
USB over-current sense, USB channels 0 and 1
USB_2_3_OC#
USB over-current sense, USB channels 2 and 3