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.
Patent No.:
Date of Patent:
Mar. 29, 2005
Filed:
Jun. 09, 2000
Christopher J. Duguay, Winchendon, MA (US);
Robert Reissfelder, Westwood, MA (US);
Robert F. Turnbull, Watertown, MA (US);
Michael K. Brown, Salem, NH (US);
Christopher J. Duguay, Winchendon, MA (US);
Robert Reissfelder, Westwood, MA (US);
Robert F. Turnbull, Watertown, MA (US);
Michael K. Brown, Salem, NH (US);
3Com Corporation, Santa Clara, CA (US);
Abstract
A system and method for implementing an SMBus/IC interface in a computer connectable to a network. The system includes a plurality of devices communicably coupled to an SMBus. The system operates at a first clock rate when the system is awake, and at a second clock rate less than the first clock rate when the system is sleeping. At least when the system is sleeping, a first device stores data transferred via the SMBus in a register, and a second device drives the clock line of the SMBus to a low logic level while the data is stored in the register of the first device. Upon completion of the data transfer operation, the first device clears the data from the register, and the second device releases the clock line to allow it to be pulled-up by pull-up circuitry connected to the SMBus.