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. 28, 1987
Filed:
Jun. 17, 1985
Applicant:
Inventors:
Donald L Tietjen, Austin, TX (US);
Michael W Cruess, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
In a data processing system having a first bus sized to accomodate 2.sup.x units of data and a second bus sized to accomodate 2.sup.y units of data, where x and y are positive integers and y is less than or equal to x, a method and apparatus for determining y from the x least significant bits of a control address, concatenated with a decode control bit, and then decoding the (x-y) most significant bits of the x control address bits to determine which of x data unit transceivers coupled between the first and second buses should be enabled.