Method and apparatus for data transfer
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United States of America Patent
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-
Feb 5, 1991
Grant Date -
N/A
app pub date -
Aug 11, 1988
filing date -
Aug 19, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bus master and a plurality of bus slaves are connected through a data bus and a control bus, and data transfer of hand shake system is performed. In the control bus, at least data strobe signal from the bus master to the bus slave and data confirmation signal from the bus slave to the bus master are transmitted. The data strobe signal from the bus master is one inputted to a bus strobe control circuit. The data confirmation signal from the bus slave is also inputted to the bus strobe control circuit, and the control circuit supervises level of the data confirmation signal being asserted and confirms negation, and then asserts the data strobe signal to the bus slave. Thereafter, a next data transfer is started.
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