Apparatus, system, and method for fast read request transfer...

Electrical computers and digital processing systems: memory – Storage accessing and control – Access timing

Reexamination Certificate

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C710S100000, C710S305000, C710S306000, C710S315000, C713S400000, C713S401000

Reexamination Certificate

active

07966468

ABSTRACT:
A speculative transfer mechanism transfers a source synchronous read request from a first clock domain to a second clock domain. The address portion having address information is transferred to the second clock domain in response to detecting a source synchronous address strobe latching signal. A pointer is generated in response to detecting the address strobe latching signal and passed into the second clock domain. In one embodiment, a pointer is retimed to be stable for a timing window for which a crossover of the address portion may be performed in the second clock domain. Request logic in the second clock domain generates a read command based on the address portion and the pointer.

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