Microprocessor peripheral access control circuit
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United States of America Patent
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-
Sep 8, 1987
Grant Date -
N/A
app pub date -
Dec 23, 1983
filing date -
Dec 23, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microprocessor system is adapted to permit the accessing of peripheral devices that have slow data bus release times without acquisition conflicts by placing the microprocessor in the hold state after the data acquisition. Logic circuitry responsive to the hold state supplies control signals to the peripheral devices over the bus during the hold state. At the end of one hold state, normal operation is resumed.
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