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:
Apr. 21, 1981
Filed:
Jan. 30, 1979
Thomas H Bennett, Scottsdale, AZ (US);
Earl F Carlow, Scottsdale, AZ (US);
Edward C Hepworth, Apache Junction, AZ (US);
Wilbur L Mathys, Norristown, PA (US);
William D Mensch, Jr, Norristown, PA (US);
Rodney H Orgill, Norristown, PA (US);
Charles I Peddle, Norristown, PA (US);
Michael F Wiles, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A digital system including a plurality of metal-oxide-semiconductor (MOS) chip random access memories (RAM), read only memories (ROM) and peripheral interface adaptors coupled to a common bidirectional data bus which is coupled to and controlled by a microprocessor unit (MPU). Each peripheral interface adaptor includes a control register loadable under program control. The contents of the control register control selection of several registers within the interface adaptor. The control register also controls other functions of the peripheral interface adaptor, including determining direction of data movement at the peripheral buffers of the interface adaptor. The contents of the control register of each interface adaptor are monitorable by the microprocessor unit.