Microprocessor for retrying data transfer
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United States of America Patent
Stats
-
Jul 4, 1989
Grant Date -
N/A
app pub date -
Aug 10, 1987
filing date -
Aug 12, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microprocessor and a peripheral equipment communicate data through a bus. If an error occurs during communication, the microprocessor starts the next bus cycle and commands retry of the data communication. If a predetermined number of times of retry fail, and if an address signal corresponds to an unmounted area of an address space, wherein the unmounted area is an area of the address space not occupied by peripheral equipment including an I/O device, the microprocessor inhibits the retry.
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