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:
Aug. 10, 1999
Filed:
Feb. 23, 1996
Applicant:
Inventors:
K C So, San Jose, CA (US);
Rajesh Manapat, Sunnyvale, CA (US);
Assignee:
Cypress Semiconductor Corp., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
713400 ; 713500 ;
Abstract
A mechanism for determining a CPU's core-to-bus frequency ratio in a computer system using the CPU itself, rather than an external agent, to sample the external pins on RESET and latch their core/bus frequency ratio information into an internal register. By accessing the information in this internal register, it is possible for the BIOS or any other software to read the internal to external clock ratios and optimize the performance of the system.