System for accessing the same memory location by two different d

Details System for accessing the same memory location by two different d System for accessing the same memory location by two different d

1988-12-19

1991-05-07

Moffitt, James

Static information storage and retrieval

Addressing

Multiple port access

36518907, G11C 800

Patent

active

050142470

ABSTRACT:
A dual port random access memory device having a memory location which has interfaces for allowing at least two devices to access a given memory location. The memory location is subdivided into at least two portions. One of the portions is a source and one of the portions is a destination. A shadow updating mechanism is provided and connected to each of the memory location portions for allowing data stored in one of the portions to be copied into the other portion.

REFERENCES:
patent: 4603406 (1986-07-01), Miyazaki et al.
patent: 4860263 (1989-08-01), Mattausch

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