INS8257 Programmable DMA Controller

National Semiconductor

Description

~National ~ Semiconductor Preliminary JULY 1978.-Z ~ INS8257 Programmable DMA Controller "tJ c8 General .
;; The INS8257 is a Direct Memory Access (DMA) con. troller contained in a standard 40. pin dual. in. line The channel control registe.

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Datasheet Specifications

Part number: INS8257
Manufacturer: National Semiconductor
File Size: 943.71 KB
Datasheet: INS8257-NationalSemiconductor.pdf
Description: Programmable DMA Controller

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

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INS8257 Programmable DMA Controller National Semiconductor

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