Direct memory access controller

Details Direct memory access controller Direct memory access controller

1991-02-22

1994-05-17

Dixon, Joseph L.

Boots, shoes, and leggings

364DIG1, 3642445, 3642595, 3642387, G06F 1202

Patent

active

053136071

ABSTRACT:
A DMA controller for supporting a data transfer operation between a first memory and a second memory includes a selector for selecting data stored in the first memory per data unit, a shifting circuit for shifting the data selected by the selector to one direction of required numbers, a F/F (flip-flop) for storing the data shifted by the shifting circuit for every data unit, a feedback circuit for feedback of the stored data by the F/F to the shifting circuit, and a transfer circuit for transferring the data stored in the F/F to the second memory.

REFERENCES:
patent: 4507731 (1985-03-01), Morrison
patent: 4845640 (1989-07-01), Ballard et al.
patent: 4933847 (1990-07-01), Chau et al.
patent: 5170477 (1992-12-01), Potter et al.

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