The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 14, 2009

Filed:

Dec. 20, 2005
Applicants:

Han Bin Kim, Pleasanton, CA (US);

Wei-yu Chen, Fremont, CA (US);

Inventors:

Han Bin Kim, Pleasanton, CA (US);

Wei-Yu Chen, Fremont, CA (US);

Assignee:

Sun Microsystems, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/12 (2006.01); G06F 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A technique for providing service processor (SP) access to registers, e.g., control and status registers (CSRs), located within hardware modules of a computer system, ensures access to the CSRs within a predetermine time period. The computer system includes a host module (HM) and a plurality of client modules (CMs). The CMs each include one or more associated registers, and each of the CMs is separately addressable. At least one of the CMs operates at a different clock frequency than the remaining CMs and includes a clock synchronizer, which provides a clock signal to facilitate reading of or writing to the associated registers of the CM by the HM.


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