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2017
congatec
AG
MA50m17
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Table 31
Thermal Protection Interface Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
THRM#
B35
Input from off-module temp sensor indicating an over temperature situation
I 3.3V
PU 10k 3.3V
THRMTRIP# A35
Active low output indicating that the CPU has entered thermal shutdown
O 3.3V
Table 32
SM Bus Signal Descriptions
Signal
Pin #
Description
I/O
PU/PD
Comment
SMB_CK
B13
System Management Bus bidrectional clock line
I/O OD
3.3VSB
PU 2k2
3.3VSB
SMB_DAT
B14
System Management Bus bidrectional data line
I/O OD
3.3VSB
PU 2k2
3.3VSB
SMB_ALERT# B15
System Management Bus Alert - Active low input can be used to generate an SMI#
(System Management Interrupt)
I 3.3VSB PU 10k
3.3VSB
Table 33
General Purpose I/O Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
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
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
