Property:Has UART
Text value for the RS232 interface chip. One of:
- 8250 - original, 1-byte buffer, one interrupt per byte received
- 16450 - 16550 but with no FIFO buffer
- 16550 - early 16550 with broken FIFO buffer, effectively a 16450
- 16550A - fixed 16550 with working FIFO buffer
- 16650 - early 16650 with broken FIFO buffer
- 16650V2 - fixed 16650 with working FIFO buffer
Add others to this list as needed - try to be as generic as possible, avoiding part names and using interface names instead.