prylbogen, The 9th bit can be set for a particular transmission in the TXSTA register by first enabling the TXSTA.6 bit and then setting the state of the bit in TXSTA.0. For the receive side enable 9 bit reception by enabling RXSTA.6 and look at RXSTA.0 for ste received state of the 9th bit.

Dave Purola,
N8NTA