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:
Jan. 23, 1979
Filed:
Aug. 08, 1977
Robert L Caswell, Placentia, CA (US);
Glen R Griffith, Westminster, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A microprocessor based apparatus for use as a bus controller and as a remote terminal in a time-division multiplex serial data bus system. The apparatus comprises a single chip which, in a preferred embodiment, is in the form of radiation hardened LSI/CMOS/SOS. It operates on a one bit per instruction basis and includes program control of output signals and word length. The described embodiment is program adapted to satisfy the performance requirements of the applicable military standard, but is easily modified, by changing the contents of an external expandable instruction storage device, to accommodate alternative requirements such as different word lengths, different message formats, and even different bus protocols. A data format encoder and data format decoder provide means to convert from Manchester bi-phase data to NRZ data for receiving data from the data bus and to make the opposite conversion for transmitting data over the data bus.