ADLINK Technology Q7-AL, User Manual

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Q7-AL
Pinouts and Signal Descriptions
21
3.3.5. Miscellaneous
Signal Pin Description I/O PU/PD Comment
WDTRIG# 70 Watchdog trigger signal. This signal restarts
the watchdog timer of the Qseven
® module
on the falling edge of a low active pulse.
I
CMOS 3.3V
WDOUT 72 Watchdog event indicator. High active
output used for signaling a missing
watchdog trigger. Will be de-asserted by
software, system reset or a system power
down. O
CMOS 3.3V
GP0_I2C_CLK 66 General Purpose I²C bus #0 clock line. I/O
CMOS 3.3V PU 2.2K 3.3V
suspend
GP0_I2C_DAT 68 General Purpose I²C bus #0 data line. I/O
CMOS
3.3VSB PU 2.2K 3.3V
suspend
SMB_CLK
/GP1_I2C_CLK 60 Clock line of System Management Bus.
Multiplexed with General Purpose I²C bus
#1 clock line. I/O
CMOS 3.3V
OD Suspend PU 4.7K 3.3V
SMB_DAT
/GP1_I2C_DAT 62 Fan tachometer input for a fan with a two
pulse output. I/O
CMOS 3.3V
OD Suspend PU 4.7K 3.3V
SMB_ALERT# 64 System Management Bus Alert input. This
signal may be driven low by SMB devices to
signal an event on the SM Bus. I/O
CMOS 3.3V
OD Suspend PU 2.2K 3.3V
SPKR
/GP_PWM_OUT
2 194 Primary functionality is output for audio
enunciator, the “speaker” in PC AT
systems. When not in use for this primary
purpose it can be used as General Purpose
PW M Output. O
CMOS 3.3V PU 10K 3.3V
BIOS_DISABLE
#
/BOOT_ALT# 41 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. I
CMOS 3.3V PU 10K 3.3V
suspend
GP_1-Wire_Bus 124 General Purpose 1-Wire bus interface. Can
be used for consumer electronics control
bus (CEC) of HDMI I/O
CMOS 3.3V PU 1K 3.3V
LID_BTN#
/GPII0 22 LID button. Low active signal used by the
ACPI operating system to detect a LID
switch and to bring system into sleep state
or to wake it up again. Open/Close state
may be software configurable. I
CMOS 3.3V
Suspend PU 10K 3.3V
SLP_BTN#
/GPII1 21 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. I
CMOS 3.3V
Suspend PU 10K 3.3V
BATLOW#
/GPII2
27 Battery low input. This signal may be driven
active low by external circuitry to signal that
the system battery is low or may be used to
signal some other external battery
management event. I
CMOS 3.3V
Suspend PU 10K 3.3V