ADLINK Technology nanoX-AL, User Manual

Page: 30 / 97

22
Pinouts and Signal Descriptions
3.3.14. SMBus
Signal Pin Description I/O PU/PD Comment
SMB_CK B13 System Management Bus bidirectional clock line. Power
sourced through 5V standby rail and main power rails. I/O OD
3.3VSB PU 8k2
3.3VSB
SMB_DAT# B14 System Management Bus bidirectional data line. Power
sourced through 5V standby rail and main power rails.
I/O OD
3.3VSB PU 8k2
3.3VSB
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. Power sourced through 5V standby rail and
main power rails.
I 3.3VSB PU 10k
3.3VSB
3.3.15. I2C Bus
Signal Pin Description I/O PU/PD Comment
I2C_CK B33 General purpose I²C port clock
output/input I/O OD
3.3VSB PU 2k2
3.3VSB Source SEMA BMC or Apollo Lake SoC
as alternative. (BMC by default)
I2C_DAT B34 General purpose I²C port data I/O
line
I/O OD
3.3VSB PU 2k2
3.3VSB Source SEMA BMC or Apollo Lake SoC
as alternative. (BMC by default)
3.3.16. General Purpose I/O (GPIO)
Signal Pin Description I/O PU/PD Comment
GPO[0] A93 General purpose output pins. O 3.3V PD 10k After hardware RESET
output low
GPO[1] B54 General purpose output pins. O 3.3V PD 10k After hardware RESET
output low
GPO[2] B57 General purpose output pins. O 3.3V PD 10k After hardware RESET
output low
GPO[3] B63 General purpose output pins. O 3.3V PD 10k After hardware RESET
output low
GPI[0] A54 General purpose input pins. Pulled high internally
on the module.
I 3.3V PU 10k 3.3V
GPI[1] A63 General purpose input pins. Pulled high internally
on the module.
I 3.3V PU 10k 3.3V
GPI[2] A67 General purpose input pins. Pulled high internally
on the module.
I 3.3V PU 10k 3.3V
GPI[3] A85 General purpose input pins. Pulled high internally
on the module.
I 3.3V PU 10k 3.3V
Notes:
GPO[0:3], PU 10k 3.3V is by build option for programming these pins to be GPI.
GPI[0:3], PD 10k is by build option for programming these pins to be GPO.