Re:UART comm w/ hardware flow control code?

I'm working on a UART software module at the moment.
At 50MHz system clock, it can handle 1200Baud -> 3MBaud (max) OK - including CRC, although that's a lot of interrupts @3MBaud!
Will be using UART module for RF comms, so only 20kBaud required. Easy work for the LM processor.