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. 29, 2001
Filed:
Dec. 14, 1998
Toshiya Kai, Osaka, JP;
Kazumi Yamada, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An E,PROM controller is provided for an emulation chip. An E,PROM is connected to a CPU via a memory interconnect bus. The E,PROM and the CPU are also connected to each other via a peripheral circuit interconnect bus independent of the memory interconnect bus. During emulation, the emulation chip is connected to an in-circuit emulator via an emulator interconnect bus, and the memory interconnect bus is disconnected. However, the E,PROM controller allows electrical communication through the peripheral circuit interconnect bus and thereby accesses the E,PROM as one of peripheral circuits. Accordingly, it is possible to check out whether or not a reprogramming program stored in the E,PROM is running normally.