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:
Mar. 27, 2007
Filed:
Sep. 19, 2005
Kenichiro Sugio, Miyazaki, JP;
Kenichiro Sugio, Miyazaki, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A semiconductor integrated circuit has a flash interface for receiving command codes and controlling a flash memory to perform corresponding read, write, and erase operations. The flash interface generates a status signal indicating whether the flash memory is currently being controlled or not. The flash interface includes an address circuit for input and output of flash memory addresses, a status circuit that generates the status signal, and a resetting circuit that resets the status signal to the non-control state according to an address output from the address circuit. This hardware feature is used to halt write operations at the maximum address without the need for a halting command, and to prevent consecutive erasing of the same part of the flash memory.