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:
Jun. 29, 1999
Filed:
May. 06, 1997
Quang C Phung, San Jose, CA (US);
Moshe Bublil, Sunnyvale, CA (US);
Sony Corporation, Tokyo, JP;
Sony Electronics, Inc., Park Ridge, NJ (US);
Abstract
A CPU interface having an 8-bit mode in which the interface is capable of interfacing with a host CPU having 8-bit data bus, and a 16-bit mode in which the interface is capable of interfacing with a host CPU having a 16-bit data bus. The host CPU interface is further capable of switching between its 8-bit and 16-bit modes in real time in response to a 16-bit host CPU entering sections of 8-bit or 16-bit software. The interface also has 'direct' and 'indirect' addressing modes, so that the interface can send or receive time-multiplexed data, and receive address information on a single bus ('indirect' mode) or send or receive data, and receive address information in parallel on separate buses ('direct' mode).