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. 22, 1999
Filed:
Feb. 21, 1997
Yukari Takata, Tokyo, JP;
Mitsugu Satou, Tokyo, JP;
Hiroyuki Kondo, Tokyo, JP;
Katsunori Sawai, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a microprocesssor (101), a selector (7) is connected to a bus ID <0:127> through a write buffer (5) and a DRAM (27), a cache (28) and an IQ (8) are also connected to the bus ID <0:127>. The bus ID <0:127> and the microprocessor (101) are connected to the external memory (4) and the external bus master (41) with a data bus D <0:15> through a BIU (3). The microprocessor (101) is also connected to the external memory (4) and the external bus master (41) with an address bus (58) and control bus (57). The BIU (3) controls an access to a memory integrated in the microprocessor (101) and a memory externally connected thereto. With this configuration, the DRAM and the cache can be integrated together in the microprocessor which is externally connected to the bus master.