HD64570 データシートの表示（PDF） - Hitachi -> Renesas Electronics

部品番号

コンポーネント説明

メーカー

HD64570

Serial Communications Adaptor

Hitachi -> Renesas Electronics 

Preface

The HD64570 serial communications adaptor (SCA) peripheral chip enables a host

microprocessor to perform asynchronous, byte-synchronous, or bit-synchronous serial

communication. Its two full-duplex, multiprotocol serial channels support a wide variety of

protocols, including frame relay, LAPB, LAPD, bisync, and ™DDCMP. Its built-in direct

memory access controller (DMAC) is equipped with a 32-stage FIFO and can execute chained-

block transfers. Due to its DMAC and 16-bit bus interface, the SCA supports serial data transfer

rates up to 12 Mbits/s without monopolizing the bus, even in full-duplex communication. Other

on-chip features of the SCA, including four types of MPU interfaces, a bus arbiter, timers, and an

interrupt controller, provide added functionality in a wide range of applications, such as frame

relay exchanges/system multiplexes, private branch exchanges, computer networks, workstations,

ISDN terminals, and facsimile.

™DDCMP is a trademark of Digital Equipment Corporation.

Rev. 0, 07/98, page i of 11

Share Link: