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.
Table A.7. Serial plug signal assignment
| Pin | Direction | UART0 J8 |
|---|---|---|
| 1 | Input | SER0_DCD |
| 2 | Input | SER0_RX |
| 3 | Output | SER0_TX |
| 4 | Output | SER0_DTR |
| 5 | - | SER0_GND |
| 6 | Input | SER0_DSR |
| 7 | Output | SER0_RTS |
| 8 | Input | SER0_CTS |
| 9 | Input | SER0_RI |
PDF version