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:
Aug. 17, 1999
Filed:
Oct. 24, 1997
Miki Urano, Wakayama, JP;
Keizo Sumida, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A start signal is generated which selects, from among a plurality of sub-periods resulting from division of one cycle period of an external clock signal and each having a length equivalent to one cycle period of an internal clock signal, a sub-period at a corresponding position to a setup time of an external device. When the start signal is generated after a CPU (central processing unit) issues a transmission request signal, there is made a transition to a transmission state. An address signal to the external device is held until data transmission starts between the CPU and the external device in synchronization with the external clock signal in the transmission state.