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:
Jul. 15, 1997
Filed:
Oct. 30, 1995
Donald L Tietjen, Austin, TX (US);
Frank C Galloway, Austin, TX (US);
David M Menard, Austin, TX (US);
Ronny L Arnold, Austin, TX (US);
Nancy G Woodbridge, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A data processing system (10) having a bus controller (5) and a multiplexed communication bus (22) and provides a portion of the valid address information during the data phase. In one embodiment, in response to an address extension control signal, the bus controller (5) allocates the communication bus (22) to provide the address extension on conductors not needed for data, reducing the need for address latch circuitry. In an alternate embodiment, the bus controller (5) provides burst transfers where the processor core (2) increments a portion of each address with each data in the burst. For such burst transfers, the length of the desired data is controlled by a sizing signal (42) from the core (2) or from cache and the increment size is supplied by the system resource (7).