Multi-port memory device for buffering between hosts

Details Multi-port memory device for buffering between hosts Multi-port memory device for buffering between hosts

2005-01-28

2008-08-12

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Addressing

Multiple port access

C365S189050, C365S189170, C365S189200

Reexamination Certificate

active

07411859

ABSTRACT:
A multi-port volatile memory device includes a first port configured for data transfer to/from an external host system and the device. A volatile main memory core is configured to store data received thereat and read requested stored data thereform. A volatile sub memory core is configured to store data received thereat and read requested stored data therefrom. A main interface circuit is coupled to the first port and configured to provide data to/from the volatile main memory core and the first port in a master mode and configured to provide data to/from the volatile sub memory core and the first port in a slave mode. A second port is configured for data transfer to/from an external non-volatile memory device and the device. A sub interface circuit is coupled to the second port and configured to provide data to/from the volatile sub memory core and the second port in the slave mode.

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