Specifications

Serial Communications (82050)
OVERVIEW
This chapter describes the Asynchronous Communication Controller
(ACC) and provides register descriptions and baud rate information.
The ACC is the Intel 82050 or equivalent. It is a single asynchronous
serial channel that performs serial communication between the
ZT 8832 and an external serial device. The major features of the ACC
are listed below.
• Full-duplex asynchronous operation
• Programmable baud rates up to 56 Kbaud
• Programmable character format
• Automatic break detect and handling
• Parity, overrun, and framing detection
• Interrupt and polled operation
• Loopback diagnostics
• Double buffering
11-2