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SAB82C258A-20-N Datasheet (sab82c25x-x-n) Advanced Dma Controller

Manufacturer: Infineon

Overview: .. Advanced DMA Controller for 16-Bit Microputer Sytems (ADMA) SAB 82C257 SAB 82C258A.

General Description

The SAB 82258A is an advanced general-purpose fourchannel DMA controller tailored for efficient high speed data transfer between peripheral devices and memories.

It is either coupled tightly with a panion CPU (local mode) or working in stand alone applications using the remote mode.

The SAB 82258A is unique among DMA controllers providing plete direct interfacing to the SAB 80286 as well as to SAB 80186/188/86/88 bus.

Key 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 an.

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