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:
Aug. 18, 1987
Filed:
Aug. 03, 1984
Applicant:
Inventor:
Glenn H Schneider, Phoenix, AZ (US);
Assignee:
Motorola Computer Systems, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
A direct memory access controller (8, FIG. 1) is provided which can service a number of input/output controllers (24, 26) concurrently on a time-division multiplexed basis. The direct memory access controller 8 (DMAC) is capable of interconnecting more than one input/output device (64, 66, 69, 74, 76) with more than one system memory (2, 20). The DMAC 8 can also transfer data from one system memory (2) to a second system memory (20), or within one system memory.