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The signals of the
RS232 | Signal | GE863- | Name | Usage |
Pin |
| QUAD/PY |
|
|
Number |
| Pad Number |
|
|
1 | DCD - | 42 | Data Carrier Detect | Output from the |
| dcd_uar |
|
| indicates the carrier presence |
| t |
|
|
|
2 | RXD - | 38 | Transmit line *see Note | Output transmit line of |
| tx_uart |
|
| UART |
3 | TXD - | 37 | Receive line *see Note | Input receive of the |
| rx_uart |
|
| UART |
4 | DTR - | 39 | Data Terminal | Input to the |
| dtr_uart |
| Ready | controls the DTE READY condition |
5 | GND |
| Ground | ground |
|
|
|
|
|
6 | DSR - | 43 | Data Set Ready | Output from the |
| dsr_uart |
|
| indicates the module is ready |
7 | RTS - | 40 | Request to Send | Input to the |
| rts_uart |
|
| controls the Hardware flow control |
8 | CTS - | 41 | Clear to Send | Output from the |
| cts_uart |
|
| controls the Hardware flow control |
9 | RI - | 44 | Ring Indicator | Output from the |
| ri_uart |
|
| indicates the incoming call condition |
NOTE: According to V.24, RX/TX signal names are referred to the application side,
therefore on the
TIP: For a minimum implementation, only the TXD and RXD lines can be connected, the other lines can be left open provided a software flow control is implemented.
The signals in the UART connector on the EVK are:
DCD | RXD |
TXD | DTR |
GND | DSR |
RTS | CTS |
RI | GND |
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