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:
Nov. 07, 2006
Filed:
Jul. 22, 2003
Yil-suk Yang, Daejeon, KR;
Jong-dae Kim, Daejeon, KR;
Tae-moon Roh, Daejeon, KR;
Dae-woo Lee, Daejeon, KR;
Sang-gi Kim, Daejeon, KR;
Il-yong Park, Pyungtaek, KR;
Byoung-gon Yu, Daejeon, KR;
Yil-suk Yang, Daejeon, KR;
Jong-dae Kim, Daejeon, KR;
Tae-moon Roh, Daejeon, KR;
Dae-woo Lee, Daejeon, KR;
Sang-gi Kim, Daejeon, KR;
Il-yong Park, Pyungtaek, KR;
Byoung-gon Yu, Daejeon, KR;
Abstract
Provided is a data bus system for a micro controller which has an input/output (I/O) unit, a central processing unit (CPU), an internal memory unit, and a peripheral circuitry. The data bus system includes an external access bus used when data is output from the CPU or data is input to the I/O unit or the internal memory unit; an internal access bus used when data is input to the CPU, data is output from the I/O unit or the internal memory unit, or data is input to or output from the peripheral circuitry; and an internal memory test bus used when data is output from the internal memory unit and input to the I/O unit.