Hugh Chang resumes & CV records
Resumes
Hugh C Chang DeceasedSan Ramon, CA
Hugh Chang Phones & Addresses
San Ramon, CA
Nice, CA
5501 Terra Granada Dr, Walnut Creek, CA 94595 925-9395833
1661 Pee Rd, Koloa, HI 96756 808-7428387
Lancaster, CA
Saratoga, CA
1661 Pee Rd, Koloa, HI 96756 808-6392842
Social networks
Hugh C Chang
Linkedin
Work
Position:
Executive, Administrative, and Managerial Occupations
Education
Degree:
Bachelor's degree or higher
Mentions for Hugh C Chang
Publications & IP owners
Us Patents
Method And Apparatus For System Bus Testability Through Loopback
US Patent:
5161162, Nov 3, 1992
Filed:
Apr 12, 1990
Appl. No.:
7/508779
Inventors:
John Watkins - Sunnyvale CA
William C. Van Loo - Palo Alto CA
Kurt Michels - Tracy CA
Hugh Chang - Los Angeles CA
William C. Van Loo - Palo Alto CA
Kurt Michels - Tracy CA
Hugh Chang - Los Angeles CA
Assignee:
Sun Microsystems, Inc. - Mountain View CA
International Classification:
G06F 1100
US Classification:
371 295
Abstract:
A workstation or server having a central processing unit (CPU) and a standard system bus interface and loopback control logic. The I/O subsystem is tested through the application of diagnositc programs running in the CPU which use programmed I/O bus cycles to read and write from the standard system bus interface. In this way, the CPU, with the loopback test mode enabled, can functionally test data paths and controls utilized to perform programmed I/O accesses to the standard system bus interface without having to access an external system bus device. Furthermore, a loopback bus cycle can cause a direct virtual memory access (DVMA) bus cycle to be created at the system bus interface. Therefore, the CPU, with the loopback test mode enabled, can also functionally test data paths and controls utilized to perform system memory DVMA without the presence of an external system bus device.
NOTICE: You may not use BackgroundCheck or the information it provides to make decisions about employment, credit, housing or any other purpose that would require Fair Credit Reporting Act (FCRA) compliance. BackgroundCheck is not a Consumer Reporting Agency (CRA) as defined by the FCRA and does not provide consumer reports.