Hardware Guide

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FIBOCOM MC610 Series Hardware Guide 40/71
debugging.
Each serial port pin is described as shown in the following table:
Table 3-11 UART1 pins
Pin Name
I/O
Pin
Description
UART1_RX
I
18
Module receiving data
UART1_TX
O
19
Module transmitting data
UART1_RTS
O
20
DTE request to transmit data
UART1_CTS
I
21
Module clearing transmitting
Table 3-12 UART2 pins
Pin Name
I/O
Pin
Description
U2RXD
I
39,114
Module receiving data
U2TXD
O
40,115
Module transmitting data
U2CTS
I
75
Module clearing transmitting
U2RTS
O
76
DTE request to transmit data
Table 3-13 UART3 pins
Pin Name
I/O
Pin
Description
U3RXD
I
77
Module receiving data
U3TXD
O
78
Module transmitting data
Table 3-14 DEBUG serial port pins
Pin Name
I/O
Pin
Description
DBG_RXD
I
94
Module receiving data
DBG_TXD
O
93
Module transmitting data