Table 3-21: miscellaneous pin assignment – IEI Integration ICE-DB-T6 User Manual
Page 73
Type 6 Carrier Board Design Guide
Page 63
"PS_ON" and can be used to control an ATX power supply.
B66
WAKE0#
I CMOS
PCI Express wake up signal.
B67 WAKE1#
I CMOS General purpose wake up signal. May be used to
implement wake-up on PS2 keyboard or mouse activity.
A27
BATLOW#
I CMOS
Indicates that external battery is low.
B35
THRM#
I CMOS
Input from off-module temp sensor indicating an over-temp
situation.
A35
THERMTRIP#
O CMOS
Active low output indicating that the CPU has entered
thermal shutdown.
B102
FAN_TACHOIN
I CMOS
0V~5V Fan Tachometer Input
B101
FAN_PWMOUT
O CMOS
Fan Speed Control PWM Control
B13
B14
SMB_C
SMB_DAT
I/O 3.3V
OD
CMOS
System Management Bus (SMBus) is used by the COM
Express module for memory configuration and clock
synthesizer configuration. It is also used by the external
PCI Express slots and ExpressCard slots.
B15 SMB_ALERT#
I
3.3V
CMOS
The SMBus alert signal used by the SMBus slave to inform
the SMBus master " Optional signal used by the SMBus
slave. that a slave transaction is pending.
B33
B34
I2C_CK
I2C_DAT
I/O 3.3V
CMOS
General purpose I2C bus for common usage on the carrier
board.
B32 SPKR
O CMOS
Output for audio enunciator - the "speaker" in PC-AT
systems
A34
BIOS_DISABLE#
I CMOS
Module BIOS disable input. Pull low to disable module
BIOS. Used to allow off-module BIOS implementations.
B88 BIOS_DIS1#
I
CMOS Selection
straps to determine the BIOS boot device. The
Carrier should only float these or pull them low.
B27 WDT
O CMOS
Output indicating that a watchdog time-out event has
occurred.
A54
A63
A67
A85
GPI0
GPI1
GPI2
GPI3
I CMOS
General purpose input pins.
A93
B54
B57
B63
GPO0
GPO1
GPO2
GPO3
O CMOS
General purpose output pins.
A91
SPI_VCC
O 3.3V
BIOS flash interface
A92
SPI_MISO
O CMOS
Data in to Module from Carrier SPI
A94
SPI_CLK
O CMOS
Clock from Module to Carrier SPI
A95
SPI_MOSI
O CMOS
Data out from Module to Carrier SPI
B97
SPI_CS#
O CMOS
Chip select for carrier board SPI
A96
PP_TPM
I CMOS
Trusted Platform Module (TPM). Active high. TPM chip has
an internal pull down. This signal is used to indicate
Physical Presence to the TPM.
A98 RS1_TX
O
UART
A99 RS1_RX
I
UART
A101 RS2_TX
O
UART
A102 RS2_RX
I
UART
Table 3-21: Miscellaneous Pin Assignment