SCC SERIAL COMMUNICATION CONTROLLER  6MHz

Two Independent, 0 to 4.0 Mbit/sec, Full-Duplex
Channels, each with a Separate Crystal Oscillator,
Baud Rate Generator, and Digital Phase-Locked Loop
for Clock Recovery.
 Multi-Protocol Operation under Program Control;
Programmable for NRZ, NRZI, or FM Data Encoding.
 Asynchronous Mode with Five to Eight Bits and One,
One and One-Half, or Two Stop Bits Per Character;
Programmable Clock Factor; Break Detection and
Generation; Parity, Overrun, and Framing Error
Detection.