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. 15, 2001
Filed:
Mar. 27, 1998
Kazushi Yamamoto, Osaka, JP;
Yoshiyuki Iwamura, Hirakata, JP;
Toshinori Maeda, Neyagawa, JP;
Toru Kakiage, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-Fu, JP;
Abstract
In the memory exclusive control device having a CPU-,accessible to both a common memory and first memory devices, the CPU-,is prohibited from accessing to the common memory device (,) during OFF state of an access permission flag, and when the access permissive flag ON is established by TCS (,), the gate of the access permitting unit (,) is opened to thereby permit the CPU-,to access to the common memory device (,). Thus, the memory exclusive control can be realized for transferring a desired program to be processed to the address space of the first memory device, allowing omission of a third memory device.