Direct memory access controller with full read/write capability

Details Direct memory access controller with full read/write capability Direct memory access controller with full read/write capability

1997-04-03

1999-04-20

Kizou, Hassan

395281, 395325, 39549701, 395823, G06F 1300, G06F 1116

Patent

active

058965505

ABSTRACT:
Versatility of access to a register set within a direct memory access (DMA) controller is increased. The DMA controller controls direct memory access transfers to and from a main memory. When a first control field in a configuration register has a first value, normal operating access is provided to a register set within the DMA controller. The register set provides control and status of the direct memory access transfers to and from the main memory. When the first control field in the configuration register has a second value special access is provided to the register set. The special access allows storage and restoration of a state of a DMA transfer.

REFERENCES:
patent: 5381538 (1995-01-01), Amini et al.
patent: 5655151 (1997-08-01), Bowes et al.
patent: 5764995 (1998-06-01), DeRoo et al.
Intel Peripheral Components Catalog 1991, ISBN#1-55512-127-6, Intel Corporation, Literature Sales, P.O. Box 7641, Mt. Prospect, IL 60056-7641, pp. 3-14--3-25.

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