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2016
congatec
AG
TR33m10
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Table 23
General Purpose I/O Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
GPO0
A93
General purpose output pins.
Shared with SD_CLK. Output from COM Express, input to SD
O 3.3V
GPO1
B54
General purpose output pins.
Shared with SD_CMD. Output from COM Express, input to SD
O 3.3V
GPO2
B57
General purpose output pins.
Shared with SD_WP. Input to COM Express, output from SD
O 3.3V
GPO3
B63
General purpose output pins.
Shared with SD_CD. Input to COM Express, output from SD
O 3.3V
GPI0
A54
General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA0. Bidirectional signal
I 3.3V
PU 10K 3.3V
GPI1
A63
General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA1. Bidirectional signal
I 3.3V
PU 10K 3.3V
GPI2
A67
General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA2. Bidirectional signal
I 3.3V
PU 10K 3.3V
GPI3
A85
General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA3. Bidirectional signal.
I 3.3V
PU 10K 3.3V
Table 24
Power and System Management Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
PWRBTN#
B12
Power button to bring system out of S5 (soft off), active on rising edge.
I 3.3VSB
PU 10K 3.3VSB
SYS_RESET#
B49
Reset button input. Active low input. Edge triggered.
System will not be held in hardware reset while this input is kept low.
I 3.3VSB
PU 10K 3.3VSB
CB_RESET#
B50
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.
O 3.3V
PWR_OK
B24
Power OK from main power supply. A high value indicates that the power is
good.
I 3.3V
PU 10K 3.3V
SUS_STAT#
B18
Indicates imminent suspend operation; used to notify LPC devices.
O 3.3VSB
SUS_S3#
A15
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.
O 3.3VSB
SUS_S4#
A18
Indicates system is in Suspend to Disk state. Active low output.
O 3.3VSB
Not supported
SUS_S5#
A24
Indicates system is in Soft Off state.
O 3.3VSB
WAKE0#
B66
PCI Express wake up signal.
I 3.3VSB
PU 10K 3.3VSB
WAKE1#
B67
General purpose wake up signal. May be used to implement wake-up on PS/2
keyboard or mouse activity.
I 3.3VSB
PU 10K 3.3VSB