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:
Feb. 27, 2007
Filed:
Jul. 31, 2003
Applicants:
Bar-chung Hwang, Taoyuan, TW;
Hsieh-yi LU, Yilan, TW;
Inventors:
Bar-Chung Hwang, Taoyuan, TW;
Hsieh-Yi Lu, Yilan, TW;
Assignee:
Winbond Electronics Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an easy access ports structure. In accordance with the present invention, each port has a register bank. Each register bank has the same address. A global register is used in the present invention to store the status values. When operating, the CPU accesses one port in accordance with the application program. The status values of the other ports are mapped to the global register. Therefore, the CPU also can understand the other ports status through the global register when accessing one port.