Datasheet > SAB82C257

SAB82C257

更新时间： 2024-11-09 04:05:59

品牌	Logo	应用领域
英飞凌 - INFINEON		控制器
页数	文件大小	规格书
2页	19K
描述
Advanced DMA Controller for 16-Bit Microcomputer Sytems (ADMA)

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SAB82C257 数据手册

Advanced DMA Controller

SAB 82C257

for 16-Bit Microcomputer Sytems (ADMA)

SAB 82C258A

General Description

Type

Package

Speed Muxed

Channel

The SAB 82258A is an advanced general-purpose four-

channel DMA controller tailored for efficient high speed data

transfer between peripheral devices and memories. It is

either coupled tightly with a companion CPU (local mode) or

working in stand alone applications using the remote mode.

The SAB 82258A is unique among DMA controllers providing

complete direct interfacing to the SAB 80286 as well as to

SAB 80186/188/86/88 bus.

SAB 82C257-1-N

P-LCC-68-1 (SMD) 10 MHz no

SAB 82C258A-12-N P-LCC-68-1 (SMD) 12 MHz yes

SAB 82C258A-20-N P-LCC-68-1 (SMD) 20 MHz yes

Features

• 16-bit DMA controller for

16-bit family processors

– SAB 80286

– SAB 80186 188

– SAB 8086/88

• 4 independent high-speed DMA channels

• 16 Mbyte addressing range

• 16 Mbyte maximum block length

• Memory based communication with CPU

• “On-the fly” compare, translate and verify operations

• Transfer rates up to 10 Mbyte/s

• 32-bit-fly-by transfers with

up to 20 Mbyte/s (10-MHz system)

• Single cycle and two cycle transfer

• Automatic chaining of command blocks

• Variable chaining of data blocks

• Multiplexer mode operation with up to 32 subchannels

• Local and remote (standalone) mode

• Support of 16-bit and 8-bit data buses

• Multiple programmable control of channel priorities

• Direct and fast CPU/channel communication

Its four superfast DMA channels transfer rate up to 10 Mbytes

per second are possible. If the maximum transfer rate

reaches as much as 20 Mbyte/second. In addition one of the

DMA channels may be configured as multiplexer channel so

that a large number of low speed peripherals can share the

use of the same channel. The interrupt structure belongs to

the fastest and most versatile ones available. Multiple

SAB 82258A DMAs can be integrated very easily by using a

simple local bus arbiter logic.

The SAB 82258A is the only DMA controller that provides

source or destination-oriented data chaining (two chaining

modes) as well as conditional command chaining (jumps

within channel program based on several conditions).

Siemens Aktiengesellschaft

中文翻译

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与SAB82C257相关器件

型号	品牌	获取价格	描述	数据表
SAB82C257-1-N	INFINEON	获取价格	Advanced DMA Controller for 16-Bit Microcomputer Sytems (ADMA)
SAB82C258A	INFINEON	获取价格	Advanced DMA Controller for 16-Bit Microcomputer Sytems (ADMA)
SAB82C258A-12-N	INFINEON	获取价格	Advanced DMA Controller for 16-Bit Microcomputer Sytems (ADMA)
SAB82C258A-20-N	INFINEON	获取价格	Advanced DMA Controller for 16-Bit Microcomputer Sytems (ADMA)
SAB82C37A-5-P	INFINEON	获取价格	DMA Controller, CMOS, PDIP40
SAB82C37A-8-P	INFINEON	获取价格	DMA Controller, CMOS, PDIP40
SAB82C37B-5-P	INFINEON	获取价格	DMA Controller, CMOS, PDIP40,
SAB83515-4N	INFINEON	获取价格	Microcontroller, 8-Bit, MROM, 8051 CPU, 12MHz, MOS, PQCC68,
SAB8352-5-16N	INFINEON	获取价格	Microcontroller
SAB8352-5-16P	INFINEON	获取价格	Microcontroller

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