Copyright
©
2014
congatec
AG
TA30m16
57/95
Signal
Pin # Description
I/O
PU/PD
Comment
FAN_TACHIN
1,2
B102
Fan tachometer input
I OD
PU 10k 3.3V
Requires a fan with two pulse
output
TPM_PP
A96
Physical Presence pin of Trusted Platform Module (TPM). Active high. TPM chip has
an internal pull-down. This signal is used to indicate Physical Presence to the TPM
I 3.3V
Trusted Platform Module chip
is optional
Note
1.
For fan control implementation, see the COM Express Design Guide
2.
Protected on the module by a series schotty diode. Therefore, pull-down resistor is required on the carrier board for proper logic level.
Table 30 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. Output from COM Express, input to SD
O 3.3V
GPO3
B63
General purpose output pins
Shared with SD_CD. Output from COM Express, input to 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
Pull-up only active in GPIO mode
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
Pull-up only active in GPIO mode
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
Pull-up only active in GPIO mode
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
Pull-up only active in GPIO mode
