Direct memory access controller

Details Direct memory access controller Direct memory access controller

1989-03-03

1991-12-31

Bowler, Alyssa H.

Boots, shoes, and leggings

364DIG1, 36523001, G06F 1300, G11C 800

Patent

active

050776649

ABSTRACT:
A direct memory access controller coupled to a system bus of a system including a memory, for controlling a data transfer by a direct memory access, includes a register registering a code which designates one of a plurality of descriptor formats, each of which defines both the number and type of descriptors necessary for the data transfer by the direct memory access, a group of registers for registering descriptors defined in one of the descriptor formats which is selected by the code registered in the register, a controller for controlling the data transfer by the direct memory access in accordance with the descriptors defined in the selected one of the descriptor formats registered in the register.

REFERENCES:
patent: 4783730 (1988-11-01), Fischer

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