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:
Sep. 13, 1988
Filed:
Jul. 28, 1986
Applicant:
Inventors:
Leonard E Niessen, Framingham, MA (US);
Allen C Hirtle, Littleton, MA (US);
Edward Beauchemin, Marlboro, MA (US);
Assignee:
Honeywell Bull Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ; H04J / ;
U.S. Cl.
CPC ...
340825520 ; 370 85 ;
Abstract
A split bus architecture which separates the processor/processors and the procedure memory coupled to a microprocessor (.mu.P) bus from all direct memory access (DMA) devices coupled to a DMA bus. A coupler mechanism provides bus isolation of the microprocessor bus from the DMA bus and permits the processor to access devices on the DMA side when addressed. This separation allows data transfers to proceed on one side of the bus without interfereing with software execution on the other side of the bus.