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. 10, 1997
Filed:
Nov. 01, 1993
James G Gay, Pfugerville, TX (US);
Ronald W Stence, Austin, TX (US);
Jefferson L Gokingco, Austin, TX (US);
John P Hansen, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for controlling a bus within a data processing system has a first control bit (SAS*), and second control bit (CLA*), and at least one termination signal (TA*, TRA*, TEA*). The CLA* signal is an input to a primary master (10). The primary master (10) provides a base address external to the primary master (10) so that a slave device can access the base address. The CLA* signal is asserted by the slave device to signal that the base address is to be cycled in a bit-wise circular fashion to provide a plurality of addresses out from the primary master (10) wherein each address in the plurality is derived from the base address internal to the primary master (10). Typically four addresses are provided per base address via the internal control of the primary master (10) in response to three sequential assertions of the CLA* signal.