INS8257 - Programmable DMA Controller

National Semiconductor

The INS8257 by National Semiconductor is a Programmable DMA Controller. Below is the official datasheet preview.

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INS8257 Programmable DMA Controller by National Semiconductor - Datasheet Preview — Official preview page of the **INS8257** Programmable DMA Controller datasheet (National Semiconductor).

Datasheet Details

Part number	INS8257
Manufacturer	National Semiconductor
File Size	943.71 KB
Description	Programmable DMA Controller
Datasheet	INS8257-NationalSemiconductor.pdf
Additional preview pages of the INS8257 datasheet.

INS8257 Product details

Description

;; The INS8257 is a Direct Memory Access (DMA) con troller contained in a standard 40 pin dual in line The channel control registers consist of four 16 bit DMA address registers and four 16 bit terminal count 3 3 package.The chip, which is fabricated using (TC) registers.These registers provide the means for S» N channel silicon gate technology, performs direct con trolling DMA transfers on their respective C" control of high speed data transfers to

Features

Four.
Channel DMA Controller.
Priority DMA Request Logic . . -a. g::. :s. CD registers (one pair per channel). A status register is also Included, which provides terminal count status.
Channel Inhibit Logic for each channel. The status register also contains a.
Terminal Count and Modulo 128 Outputs register programming flag, which is a valuable aid in maintaining byte synchronization when pJogram.
Auto Load Mode ming channel control regis.

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Published: Apr 12, 2024 |