Static information storage and retrieval – Addressing – Sync/clocking
Patent
1997-07-09
1999-09-14
Le, Vu A.
Static information storage and retrieval
Addressing
Sync/clocking
365240, 36523008, 36518912, G11C 700
Patent
active
059532840
ABSTRACT:
A system for adjusting the phase of an internal clock signal relative to an external clock signal in a packetized dynamic random access memory device. The system applies a plurality of initialization packets to the memory device that are captured in a shift register responsive to a transition of the internal clock signal. However, the phase of the internal clock signal is sequentially incremented after each initialization packet has been captured in the shift register. After a plurality of initialization packets have been captured, an evaluation circuit identifies which phases of the internal clock signal clocked the shift register at the proper time to accurately capture each initialization packet. A single phase of the internal clock signal is then selected from within the range of internal clock signal phases that successfully captured initialization packets. This selected phase of the internal clock signal is used during normal operation of the memory device.
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Baker Russel Jacob
Manning Troy A.
Le Vu A.
Micro)n Technology, Inc.
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