Zilog Z16C35 Uživatelský manuál stáhnout pdf (Strana 211)

9-1

PPLICATION

OTE

ILOG

ATACOM

AMILY

WITH

THE

80186 CPU

ilog’s datacom family evaluation board features the 80186 along with four multiprotocol

serial controllers, and allows customers to evaluate these components in an Intel

environment.

INTRODUCTION

Zilog’s customers need a way to evaluate its serial

communications controllers with a central CPU. This App

Note (Application Note) explains and illustrates how the

datacom family interfaces and communicates with the

80186 on this evaluation board. The board helps the

potential customer to evaluate Zilog’s data communications

controllers in an Intel environment.

The most advanced and complex component of the serial

family is the IUSC. One of the highlights of this App Note

is how the IUSC adapts to the 80186 CPU with a minimum

of difficulty and a maximum of bus and functional flexibility.

GENERAL DESCRIPTION

The evaluation board includes the following hardware.

(Reference two page Schematic diagram at rear of the App

Note - Figures 5A and 5B.)

■

Intel 80186 Integrated 16-bit Microprocessor

■

Zilog Z16C32 Integrated Universal Serial Controller

(IUSC™)

■

Zilog Z16C33 Monochannel Universal Serial Controller

(MUSC™) or USC

■

Zilog Z16C35 Integrated Serial Communications

Controller (ISCC™)

■

Zilog Z85230 Enhanced Serial Communications

Controller (ESCC™) or SCC

■

Two 28-pin EPROM sockets, suitable for 2764’s through

27512’s

■

Six 32-pin (or 28-pin) SRAM sockets, suitable for

32K x 8 or 128K x 8 devices

■

Four Altera EPLD circuits comprising the glue logic

(Figures 1-4 at rear of the App Note) and Evaluation

Board Schematic (Figures 5a, 5b)

■

RS-232 and RS-422 line drivers and receivers

■

Pin headers for configuring and interconnecting the

above to serial applications

Notes:

All Signals with a preceding front slash, “/”, are active Low,

e.g.: B//W (WORD is active Low); /B/W (BYTE is active

Low, only).

Power connections follow conventional descriptions

below:

Connection Circuit Device

Power V

Ground GND V

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