Multiport memory and method of arbitrating an access conflict th

Details Multiport memory and method of arbitrating an access conflict th Multiport memory and method of arbitrating an access conflict th

1994-08-31

1997-08-19

Elmore, Reba I.

395477, 395495, G06F 1318

Patent

active

056597118

ABSTRACT:
A multiport memory includes a first memory block and a second memory block which are independently accessible with each other. Each of the first and second memory blocks can be accessed simultaneously through first and second ports. The memory includes a first access conflict detector for detecting an access conflict on the first memory block, a second access conflict detector for detecting an access conflict in the second memory block, a first arbitor responsive to the first detector for arbitrating an access conflict in the first memory block, and a second arbitor responsive to the second detector for arbitrating an access conflict in the second memory block. The memory further includes a selector for transferring the arbitration result of the first arbitor to the second memory block while neglecting the arbitration result of the second arbitor only when both the first and second detector detect the access confliction.

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