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:
Feb. 16, 1999
Filed:
Apr. 01, 1996
Joseph C Circello, Phoenix, AZ (US);
James G Gay, Pflugerville, TX (US);
Clinton T Glover, Austin, TX (US);
Kevin M Traynor, Austin, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A system bus controller (103) within a processor (101) includes programmable logic for different modes of chip enable signals on a per-address-space basis. This allows for a 'glueless' interface (107) between the processor (101) and different types of external devices (111, 112, 113), such as memory devices. A chip select register value 604, 608, 612 is preprogrammed with respect to each external device coupled to the processor (101). This preprogrammed register value 604, 608, 612 is used by the system bus controller (103) to uniquely configure a read/write access signal to be sent to each of the external devices (111, 112, 113).