N: L = reason code Other register parameters depend on reason code OUT: Depends on reason code, see below. IX will always be unchanged. |
IN: - OUT: Fc = 0 Registers changed after return: ..BCDEHL/IXIY same AF....../.... different |
This resets the UART in the gate array. This call should not need to be used.
IN: - OUT: - Registers changed after return: ......../IXIY same AFBCDEHL/.... different |
This call should be useful to install new panel settings or when starting low level (ie. using SI_GBT, SI_PBT etc.) serial operations. It carries out the following:
1. Empty receive and transmit buffers.
2. Reset the XON/XOFF flags.
3. Reset baud rates, parity and flow control settings to the PANEL values.
4. Assert RTS.
5. Resets the serial port timeout to its default of 10 minutes.