Z80 datasheet(227/330 Pages) ZILOG

227 / 330 page

Z80 CPU Peripherals

User Manual

UM008101-0601

Serial Input/Output

207

Serial Input/Output

OVERVIEW

The Z80 Serial Input/Output (SIO) is a dual-channel multi-function

peripheral component designed to satisfy a wide variety of serial data

communications requirements in microcomputer systems. The Z80 SIO

functions as a serial-to-parallel, parallel-to-serial converter/controller, and

is systems-software configurable to allow optimization for a given serial

data communications application.

The Z80 SIO is capable of handling asynchronous and synchronous byte-

oriented protocols such as IBM Bisync and synchronous bit-oriented

protocols such as HDLC and IBM SDLC. This versatile device also

supports virtually any other serial protocol for applications other than data

communications, such as cassette or floppy disk interfaces.

The Z80 SIO can generate and check CRC codes in any synchronous mode

and can be programmed to check data integrity in various modes. The

device also has features for modem controls in both channels. In applica-

tions where these controls are not needed, the modem controls can be used

for general-purpose I/O.

FEATURES

• CMOS and NMOS Version

• 40-Pin DIP, 44-Pin PLCC/QFP Packages

• Single 5V Power Supply

• Single-Phase 5V Clock

Z80 Datasheet(PDF) 227 Page - Zilog, Inc.