Table 25 Serial/Uart Interface Signal Descriptions; Table 26 Power And Gnd Signal Descriptions - Congatec COM Express conga-TR3 User Manual

Signal Pin # Description
BATLOW# A27 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.
THRM# B35 Input from off-module temp sensor indicating an over-temp situation.
THERMTRIP# A35 Active low output indicating that the CPU has entered thermal shutdown.
SMB_CK B13 System Management Bus bidirectional clock line.
SMB_DAT# B14 System Management Bus bidirectional data line.
SMB_ALERT# B15 System Management Bus Alert – active low input can be used to generate an
SMI# (System Management Interrupt) or to wake the system.
LID# A103 Lid button. Used by the ACPI operating system for a LID switch.
SLEEP B103 Sleep button. Used by the ACPI operating system to bring the system to sleep
state or to wake it up again.
Table 25 Serial/UART Interface Signal Descriptions
Signal Pin # Description
SER0_TX A98 General purpose serial port transmitter
SER1_TX A101 General purpose serial port transmitter
SER0_RX A99 General purpose serial port receiver
SER1_RX A102 General purpose serial port receiver
Table 26 Power and GND Signal Descriptions
Signal Pin #
VCC_12V A104-A109
B104-B109
VCC_5V_SBY B84-B87
VCC_RTC A47
GND A1, A11, A21, A31, A41,
A51, A57, A60, A66, A70,
A80, A90, A100, A110,
B1, B11, B21, B31, B41,
B51, B60, B70, B80, B90,
B100, B110
Copyright © 2016 congatec AG
Description
Primary power input: +12V nominal. All available VCC_12V pins on the connector(s)
shall be used.
Standby power input: +5.0V nominal. If VCC5_SBY is used, all available VCC_5V_SBY
pins on the connector(s) shall be used. Only used for standby and suspend functions.
May be left unconnected if these functions are not used in the system design.
Real-time clock circuit-power input. Nominally +3.0V.
Ground - DC power and signal and AC signal return path.
All available GND connector pins shall be used and tied to Carrier Board GND plane.
I/O PU/PD
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 2.2K 3.3VSB
I/O OD PU 2.2K 3.3VSB
3.3VSB
I 3.3VSB PU 10K 3.3VSB
I 3.3V PU 47K 3.3VSB
I 3.3V PU 47K 3.3VSB
I/O PU/PD Comment
O 3.3V Signal is driven to logic 1 only. External PD is required.
O 3.3V Signal is driven to logic 1 only. External PD is required.
I 3.3V PU 47K 3.3V
I 3.3V PU 47K 3.3V
TR33m10
Comment
Not supported
I/O PU/PD Comment
P
P
P
P
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