COM port 1/TOOL port: communication error code (program controlled communication)
The data register stores the code of a communication error at the serial port. - Bit 0–7 (for TOOL port):
- Bit 0 = 1: Overrun error
- Bit 1 = 1: Framing error
- Bit 2 = 1: Parity error
- Bit 8–15 (for COM port 1):
- Bit 8 = 1: Overrun error
- Bit 9 = 1: Framing error
- Bit 10 = 1: Parity error
