Request cancel system

Details Request cancel system Request cancel system

G - Physics

06

F

354/237

G06F 12/00 (2006.01) G06F 13/16 (2006.01)

Patent

CA 2007640

A request cancel system is adapted to a processing system which comprises a main storage unit having a plurality of banks, a memory control unit and a plurality of access units which make access to the banks of the main storage unit via the memory control unit. The request cancel system comprises a check part for detecting whether or not a bank designated by an address of an access request from an arbitrary access unit is in use by reading a corresponding bank busy flag from a bank busy flag group, a comparator for comparing an address of a first access request and an address of a second access request which is received immediately after the first access request and for outputting a coincidence signal when the check part detects that a bank designated by the address of the second access request is not in use and the addresses of the first and second access requests coincide, and a request cancel controller for cancelling the second access request in response to the coincidence signal from the comparator.

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