A.8. UART interface

The Versatile/AB926EJ-S provides three serial transceivers. UART0 is connected to serial connector J8 and UART1 and UART2 are connected to the expansion connector.

Figure A.7 shows the pin numbering for the 9-pin D-type male connector (J8) used on the Versatile/AB926EJ-S and Table A.7 shows the signal assignment for the connectors.

UART0 (J8) is configured as a Data Terminal Equipment (DTE) device. Figure A.7 shows the view looking into the pins on the male connector mounted on the board.

Figure A.7. Serial connector J8

Serial connector J8

Table A.7. Serial plug signal assignment

PinDirectionUART0 J8
1InputSER0_DCD
2InputSER0_RX
3OutputSER0_TX
4OutputSER0_DTR
5-SER0_GND
6InputSER0_DSR
7OutputSER0_RTS
8InputSER0_CTS
9InputSER0_RI

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