DocumentCode
809053
Title
A CAMAC Branch Driver for the Varian 620 Series Computers
Author
Mortara, Lorne B.
Author_Institution
Kitt Peak National Observatory 950 N. Cherry Ave., P.O. Box 4130 Tucson, Arizona 85717
Volume
20
Issue
1
fYear
1973
Firstpage
680
Lastpage
684
Abstract
A CAMAC branch driver for the Varian 620 series computers has been designed and built by Kitt Peak National Observatory for use in several real time control and data acquisition systems currently being assembled. Its principal feature is a stack register which serves as a work area to assemble the information needed for a CAMAC cycle. The stack has sixteen levels which serve to preserve the existing status under interrupt conditions without requiring special software routines. A priority interrupt system with 23 levels and a direct memory access channel are also included. The system is self contained, needing no auxiliary support within the host computer. Highlights of the structure and general characteristics are described below.
Keywords
Assembly systems; CAMAC; Control systems; Data acquisition; Delay; Observatories; Real time systems; Registers; Timing;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1973.4326980
Filename
4326980
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