MK68564 Datasheet (ST Microelectronics)

MK68564, SERIAL INPUT OUTPUT

The MK68564 SIO (Serial Input Output) is a dualchannel, multi-function peripheral circuit, designed to satisfy a wide variety of serial data communications requirements in microcomputer systems.

Its basic function is a serial-to-parallel, parallel-to-serial converter/controller ; however within that

MK68564 SERIAL INPUT OUTPUT .

COMPATIBLE WITH MK68000 CPU COMPATIBLE WITH MK68000 SERIES DMA’s TWO INDEPENDENT FULL-DUPLEX CHANNELS TWO INDEPENDENT BAUD-RATE GENERATORS - Crystal oscillator input - Single-phase TTL clock input DIRECTLY ADDRESSABLE REGISTERS (all control registers are read/write) DATA RATE IN SYNCHRONOUS OR ASYNCHRONOUS MODES - 0-1.25M bits/second with 5.0MHz system clock rate SELF-TEST CAPABILITY RECEIVE DATA REGISTERS ARE QUADRUPLY BUFFERED ; TRANSMIT

MK68564 Features

* - 5, 6, 7, or 8 bits/character 11/2, or 2 stop bits - 1, - Even, odd, or no parity - x1, x16, x32, and x64 clock modes - Break generation and detection - Parity, overrun, and framing error detection BYTE SYNCHRONOUS FEATURES - Internal or external character synchronization - One or two sync characte