Table 15 General Purpose I/O Signal Descriptions; Table 16 Power And System Management Signal Descriptions - Congatec COM Express conga-TCA5 User Manual

Table 15 General Purpose I/O Signal Descriptions
Signal Pin # Description
GPO0 A93 General purpose output pins.
Shared with SD_CLK. Output from COM Express, input to SD
GPO1 B54 General purpose output pins.
Shared with SD_CMD. Output from COM Express, input to SD
GPO2 B57 General purpose output pins.
Shared with SD_WP. Output from COM Express, input to SD
GPO3 B63 General purpose output pins.
Shared with SD_CD. Output from COM Express, input to SD
GPI0 A54 General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA0. Bidirectional signal
GPI1 A63 General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA1. Bidirectional signal
GPI2 A67 General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA2. Bidirectional signal
GPI3 A85 General purpose input pins. Pulled high internally on the module.
Shared with SD_DATA3. Bidirectional signal.
Table 16 Power and System Management Signal Descriptions
Signal Pin # Description
PWRBTN# B12 Power button to bring system out of S5 (soft off), active on falling edge.
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.
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.
PWR_OK B24 Power OK from main power supply. A high value indicates that the power is good.
SUS_STAT# B18 Indicates imminent suspend operation; used to notify LPC devices.
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.
SUS_S4# A18 Indicates system is in Suspend to Disk state. Active low output.
Copyright © 2017 congatec AG
I/O
O 3.3V
O 3.3V
O 3.3V
O 3.3V
I 3.3V
I 3.3V
I 3.3V
I 3.3V
I/O
I 3.3VSB
I 3.3VSB
O 3.3V
I 3.3V
O 3.3VSB
O 3.3VSB
O 3.3VSB
TA50m10
PU/PD Comment
PU 10K Pull-up only active in GPIO mode
3.3V
PU 10K Pull-up only active in GPIO mode
3.3V
PU 10K Pull-up only active in GPIO mode
3.3V
PU 10K Pull-up only active in GPIO mode
3.3V
PU/PD Comment
PU 10k
3.3VSB
PU 10k
3.3 VSB
PU 100k Connected via series diode to
3.3VSB onboard voltage monitor
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