Hi Dixon,

You can use a serial to parallel converter chip as an easy solution. You could try writing code that will convert one of the PORT1 pins into another serial input port. You would need to know the rate at which the A/D converter transmits out the data. Another option would be to use the MAX154 A/D converter. I use it with the company I work for. Works great. It has a 8-bit parallel data transfer and 4 0-5V A/D channels.

TTYL,
Dave Kaleta