Table 17 Power And System Management Signal Descriptions; Table 18 General Purpose Serial Interface Signal Descriptions - Congatec COM Express conga-TC87 User Manual

Table 17 Power and System Management Signal Descriptions
Signal Pin # Description
PWRBTN# B12
SYS_RESET# B49
CB_RESET# B50
PWR_OK B24
SUS_STAT# B18
SUS_S3# A15
SUS_S4# A18
SUS_S5# A24
WAKE0# B66
WAKE1# B67
BATLOW# A27
THRM# B35
THERMTRIP# A35
SMB_CK B13
SMB_DAT# B14
SMB_ALERT# B15
LID# A103
SLEEP B103
Table 18 General Purpose Serial Interface Signal Descriptions
Signal Pin #
SER0_TX A98
SER1_TX A101
SER0_RX A99
SER1_RX A102
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Power button to bring system out of S5 (soft off), active on rising edge.
Reset button input. Active low input. Edge triggered.
System will not be held in hardware reset while this input is kept low.
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.
Power OK from main power supply. A high value indicates that the power is good.
Indicates imminent suspend operation; used to notify LPC devices.
Indicates system is in Suspend to RAM state. Active-low output. An inverted copy of SUS_S3#
on the carrier board (also known as "PS_ON") may be used to enable the non-standby power on
a typical ATX power supply.
Indicates system is in Suspend to Disk state. Active low output.
Indicates system is in Soft Off state.
PCI Express wake up signal.
General purpose wake up signal. May be used to implement wake-up on PS/2 keyboard or
mouse activity.
Battery low input. This signal may be driven low by external circuitry to signal that the system
battery is low, or may be used to signal some other external power-management event.
Input from off-module temp sensor indicating an over-temp situation.
Active low output indicating that the CPU has entered thermal shutdown.
System Management Bus bidirectional clock line.
System Management Bus bidirectional data line.
System Management Bus Alert – active low input can be used to generate an SMI# (System
Management Interrupt) or to wake the system.
Lid button. Used by the ACPI operating system for a LID switch.
Sleep button. Used by the ACPI operating system to bring the system to sleep state or to wake it
up again.
Description
General purpose serial port transmitter
General purpose serial port transmitter
General purpose serial port receiver
General purpose serial port receiver
TU87m10
I/O PU/PD Comment
I 3.3VSB PU 10k 3.3VSB
I 3.3VSB PU 10k 3.3VSB
O 3.3V PD 100k
I 3.3V Set by resistor divider
to accept 3.3V.
O 3.3VSB PU 10k 3.3VSB
O 3.3VSB
O 3.3VSB Not supported
O 3.3VSB
I 3.3VSB PU 1k 3.3VSB
I 3.3VSB PU 10k 3.3VSB
I 3.3VSB PU 10k 3.3VSB
I 3.3V PU 10k 3.3V
O 3.3V PU 10k 3.3V
I/O 3.3VSB PU 2k2 3.3VSB
I/O OD PU 2k2 3.3VSB
3.3VSB
I 3.3VSB PU 10k 3.3VSB
I OD 3.3V PU 10k 3.3VSB
I OD 3.3V PU 10k 3.3VSB
I/O PU/PD Comment
O 3.3V
O 3.3V
I 3.3V PU 50k 3.3V
I 3.3V PU 50k 3.3V
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