Memory control unit

Details Memory control unit Memory control unit

G - Physics

06

F

354/241

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

Patent

CA 1322611

MEMORY CONTROL UNIT ABSTRACT OF THE DISCLOSURE A memory control unit (MCU) includes a first interface for interfacing the memory control unit to one or more memory units; a second interface for interfacing the memory control unit to a system bus, including a system data bus for expressing information units, including memory read and write requests, and a system address bus. The MCU further includes logic, responsive to a write request from the system bus, for storing one or more information units within a memory unit at an address specified by the system address bus. The storing logic includes write request receiving and buffer logic having a plurality of storage locations for storing received write requests and associated write addresses prior to the execution of the write requests. The MCU further includes logic, responsive to a read request from the system bus, for reading one or more information units from a memory unit at a location specified by the system address bus. The reading logic includes read request receiving and buffer logic having a plurality of storage locations for storing received read requests and associated read addresses prior to the execution of the read requests. The memory control unit further has logic for comparing a received read address to write addresses stored in the write address buffer, the comparing logic having an output for indicating, when asserted, the occurence of the reception of a read address having a value within a predetermined range of values of one of the stored write addresses.

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