3.3.14
I2C Bus
Signal
Pin #
Description
I2C_CK
B33
General purpose I²C port clock output/input
I2C_DAT
B34
General purpose I²C port data I/O line
3.3.15
General Purpose I/O (GPIO)
Signal
Pin #
Description
GPO[0]
A93
General purpose output pins.
GPO[1]
B54
General purpose output pins.
GPO[2]
B57
General purpose output pins.
GPO[3]
B63
General purpose output pins.
GPI[0]
A54
General purpose input pins.
Pulled high internally on the module.
GPI[1]
A63
General purpose input pins.
Pulled high internally on the module.
GPI[2]
A67
General purpose input pins.
Pulled high internally on the module.
GPI[3]
A85
General purpose input pins.
Pulled high internally on the module.
3.3.16
Serial Interface Signals
Signal
Pin #
Description
SER0_TX A98
General purpose serial port transmitter (TTL level output)
SER0_RX A99
General purpose serial port receiver (TTL level input)
SER1_TX A101
General purpose serial port transmitter (TTL level output)
SER1_RX A102
General purpose serial port receiver (TTL level input)
Express-HLE
I/O
PU/PD
I/O OD 3.3VSB
PU 2k2 3.3VSB
I/O OD 3.3VSB
PU 2k2 3.3VSB
I/O
PU/PD
O 3.3V
O 3.3V
O 3.3V
O 3.3V
I 3.3V
PU 10K 3.3V
I 3.3V
PU 10K 3.3V
I 3.3V
PU 10K 3.3V
I 3.3V
PU 10K 3.3V
I/O
PU/PD
Comment
O CMOS
Power rail tolerance 5V / 12V
I CMOS
Power rail tolerance 5V / 12V
O CMOS
Power rail tolerance 5V / 12V
I CMOS
Power rail tolerance 5V / 12V
Comment
Comment
After hardware RESET
output low
After hardware RESET
output low
After hardware RESET
output low
After hardware RESET
output low
Page 23
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