System and method for providing a write strobe signal to a...

Details System and method for providing a write strobe signal to a... System and method for providing a write strobe signal to a...

2006-06-20

2006-06-20

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

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

C711S100000

Reexamination Certificate

active

07065669

ABSTRACT:
A method and apparatus is provided for that includes an improved special function register (SFR) access scheme by using a clock tree distribution process. In accordance with an exemplary embodiment, a conditional SFR write strobe signal may be used to trigger the SFR registers. A clock tree distribution process may be used to achieve significantly higher system speed. When balancing the clock network of the system, the clock leaf of the flip-flop or other circuit element that generates the SFR write strobe signal may be “advanced” by connecting the circuit element directly to the clock root. In addition, the SFR write strobe signal distribution may be balanced as a separate clock tree with minimum insertion delay.

REFERENCES:
patent: 4241416 (1980-12-01), Tarczy-Hornoch
patent: 5694586 (1997-12-01), Eneboe
patent: 6091515 (2000-07-01), Kimura
patent: 6134516 (2000-10-01), Wang et al.
patent: 6247137 (2001-06-01), Wickeraad
patent: 6629222 (2003-09-01), Jeddeloh
patent: 6651225 (2003-11-01), Lin et al.

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