The document describes the features and characteristics of the MK68564 January 1989 serial input output device. It is compatible with the MK68000 CPU and MK68000 series DMA. The device has two independent full-duplex channels and two independent baud-rate generators. It supports data rates in synchronous or asynchronous modes, with self-test capability and modem status monitoring. It also supports asynchronous, byte synchronous, and bit synchronous features, such as various data bit lengths, stop bit lengths, parity options, sync character insertion, etc.
The MK68564 SIO is a dual-channel, multi-function peripheral circuit designed to satisfy various serial data communications requirements in microcomputer systems. It functions as a serial-to-parallel and parallel-to-serial converter/controller that can be configured via software for different applications.
The device supports asynchronous protocols, synchronous byte-oriented protocols like IBM Bisync, and synchronous bit-oriented protocols such as HDLC and IBM SDLC. It features two independent full-duplex channels with separate modem controls and includes self-test capability.
The device supports a data rate of up to 1.25M bits/second when using a 5.0MHz system clock.
The device requires a +5 Volt power supply with a tolerance of plus or minus 5%.
The device provides two independent full-duplex channels for serial data communication.