Refresh system for dynamic RAM memory
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United States of America Patent
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-
Feb 3, 1981
Grant Date -
N/A
app pub date -
Jan 8, 1979
filing date -
Jan 8, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for controlling the refreshing of a volatile memory is disclosed in which conflicts between a memory refresh operation, the requirements for access to the memory during a data processing operation and a power up or power down condition are resolved. When a conflict occurs, clock signals are generated to provide a contention refresh operation of the memory with minimum interruption to normal access time between the control processor and the memory.
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