Static information storage and retrieval – Read/write circuit – Signals
Patent
1995-04-14
1997-06-03
Nelms, David C.
Static information storage and retrieval
Read/write circuit
Signals
36523006, 327141, 327161, G11C 700
Patent
active
056361653
ABSTRACT:
An apparatus for and method of ensuring proper transfer of data between two registers. A device driver utilizes a clock signal as an enable input before data is transferred from one register to another. This prevents a misregistration of data when delays in propagation of the clock signal exceed delays in propagation of data signals. In alternate embodiments, provision is made for bidirectional transfer by ANDing the clock signal with directional control signals to produce the enable signal. There is also a provision for implementing the concepts of the invention in connection with a shared bus interface, and in a bidirectional interface in such a manner as to ensure a lack of bus contention.
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Amatangelo Matthew J.
Winkler David T.
Martin Marietta Corporation
Nelms David C.
Niranjan F.
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