Cross-clock domain data transfer method and apparatus

Details Cross-clock domain data transfer method and apparatus Cross-clock domain data transfer method and apparatus

1998-11-03

2000-10-03

Heckler, Thomas M.

Electrical computers and digital processing systems: support

Clock control of data processing system, component, or data...

710 58, G06F 1300, G06F 104

Patent

active

061287490

ABSTRACT:
An apparatus and method for transferring units of information between clock domains. A respective set of N units of information is loaded from an output circuit in a first clock domain into a storage circuit in a second clock domain during each cycle of the first clock domain. Each set of N units is selected by the output circuit to include (1) units of information that have previously been loaded into the storage circuit and that will not be output from the storage circuit prior to the storage circuit being loaded with a subsequent set of N units of information, and (2) a complement number of units of information that have not previously been loaded into the storage circuit.

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A.S. Sedra, K.C. Smith, "Microelectronics Circuits", 2.sup.nd Edition, CBS College Publishing, 1987, pp. v-xi, 883-886.
Advanced Information, "Direct Rambus Clock Generator", DRCG Data Sheet, Rambus Inc., www.rambus.com, DL0056-00.05, Feb. 1998, pp. 1-8.
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Advanced Information, "Direct RMC.d1 Data Sheet", Rambus Inc., www.rambus.com, DL0036-00.7, Aug. 1998, pp. 1-104.

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