Info page: http://focus.ti.com/docs/prod/folders/print/tl16c550c.html I want to use it to interface the serial port to a parallel output ADC. I will also connect some logic onto the the output and and use it to select the input line, control motors, etc. I'll use latches to multiplex the I/O pins for both input and output. How do I wire it? Is there a better solution instead? Can I use a PIC?