The following table lists the SRM console special characters:
| Character/Key(s) | Function |
|---|---|
| Return | Terminates command line input. |
| Backspace | Deletes the previously typed character. |
| Ctrl/A | Toggles insert/overstrike mode (overstrike is the default). |
| Ctrl/B | Recalls previous commands (last 16 commands are stored). |
| Ctrl/C | Terminates the foreground process. |
| Ctrl/D | Moves cursor left one position. |
| Ctrl/E | Moves cursor to the end of the line. |
| Ctrl/F | Moves cursor right one position. |
| Ctrl/H | Moves cursor to the beginning of the line. |
| Ctrl/O | Suppresses console output. |
| Ctrl/Q | XOFF, Resumes flow of data to the console. |
| Ctrl/S | XON, Stops the flow of data to the console. |
| Ctrl/U | Deletes the entire line. |
| Ctrl/R | Retypes the current command line. |
| Ctrl/P | In console mode, Ctrl/P is ignored. In program mode, and if enabled, the software running is halted and the console firmware is started. |