COMMELL QE-E70 - Manual (Page 21)

LN-D70 User’s Manual
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S3 cold power state.
SUS_S5# S5 State: This signal indicates S4 or S5 (Soft Off) state.
SLP_BTN# Sleep button. Low active signal used by the ACPI operating
system to transition the system into sleep state or to wake it up
again.
This signal is triggered on falling edge.
2.3.13
Signal Description
WDOUT Watchdog event indicator. High active output used for
signaling a missing watchdog trigger. Will be deasserted by
software, system reset or a system power down.
SMB_CLK Clock line of System Management Bus.
SMB_DAT Data line of System Management Bus.
SMB_ALERT# System Management Bus Alert input. This signal may be
driven low by SMB devices to signal an event on the SM Bus.
SPKR Primary functionality is output for audio enunciator, the
“speaker＂ in PC AT systems.
BIOS_DISABLE# Module BIOS disable input signal. Pull low to disable module's
on-board BIOS. Allows off-module BIOS implementations.
This signal can also be used to disable standard boot firmware
flash device and enable an alternative boot firmware source,for
example a boot loader.
2.3.14
Signal Description
THRM# Thermal Alarm active low signal generated by the external
hardware to indicate an over temperature situation. This signal
can be used to initiate thermal throttling.