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:
May. 25, 2004
Filed:
Dec. 27, 2000
Mikio Takasugi, Kanagawa-ken, JP;
Shigeaki Iwasa, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The present invention is to provide an emulator and a method of emulation for using testing a system having complex interfaces capable of stable testing can be realize under the system regulation frequency or less frequency without using the high-performance and expensive tester. The emulator comprises a content addressable memory (CAM) configured to store addresses accessed by a system to be tested, a memory unit having storage area corresponding to the entry of the CAM, configured to store data corresponding to the address stored in the CAM, and test information for emulation, a shift register configured to store data and test information from a tester and transfer the data and the test information to the CAM and the memory unit, and a state machine configured to receive a request from a system or a tester and control transferring between a system and a tester.