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EVB User Guide
Table 10: Pins of UART port3
Pin
Signal
1_1
TXD_AUX
1_2
RXD_AUX
1_3
GND
1-1
Table 11: Pins of serial port
Pin
Signal
1_1
DCD
1_2
TXD
1_3
RXD
1_4
DTR
1_5
GND
1_7
RTS
1_8
CTS
1_9
RI
M80_EVB_UGD_V1.0
I/O
O
Transmit data
I
Receive data
Ground
1-7 1-8
1-9
1-3 1-4 1-5
1-2
Figure 11: Main UART
I/O
O
Data carrier detection
O
Transmit data
I
Receive data
I
Data terminal ready
Ground
I
Request to send
O
Clear to send
O
Ring indicator
Description
Description
Note
Note
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