Pipelined address check bit stack controller

Details Pipelined address check bit stack controller Pipelined address check bit stack controller

1990-03-19

1991-01-29

Atkinson, Charles E.

Excavating

371 377, 371 403, G06F 1110

Patent

active

049892100

ABSTRACT:
A memory system which is shared by a plurality of requestors each of which supply read and write address bits to the memory system is read out of, or written into, in accordance with read and write address bits. A sequencer is utilized to initiate a sequence of timing signals that control the reading, writing and partial writing of data. Certain ones of these signals occur at fixed intervals from the receipt of an initial load address signal. A read address circuit coupled to receive the read address bits generates a set of check bits. A read address stack means stores each set of read address check bits upon the occurrence of an associated load read address stack signal. A write address check bit generator means is coupled to receive write address bits and to generate a set of check bits representative of the write address bits. A write address stack means stores each set of the write address check bits upon the occurrence of an associated load write address stack signal. A read address stack selector and a write address stack selector read out read address check bits and write address check bits, while the sequencer controls the transmission of the read address check bits and the write address check bits to an error detection circuit.

REFERENCES:
patent: 4706249 (1987-11-01), Nakagawa
patent: 4710934 (1987-12-01), Traynor
patent: 4800535 (1989-01-01), McAlpine
patent: 4805173 (1989-02-01), Hillis
patent: 4809278 (1989-02-01), Kim
patent: 4809279 (1989-02-01), Kim
patent: 4811347 (1989-03-01), Bolt
patent: 4837743 (1989-06-01), Chiu

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