Method and apparatus of scanning control for information process

Details Method and apparatus of scanning control for information process Method and apparatus of scanning control for information process

1984-02-10

1987-05-19

Smith, Jerry

Excavating

371 27, G06F 1100

Patent

active

046673253

ABSTRACT:
A scanning control apparatus operates to scan-in arbitrary data to data storage elements such as registers, flip-flops and memory devices in an information processing system, and also scan-out data held in the data storage elements. The data storage elements are provided with physical scanning addresses determined in accordance with the arrangement of packaging, and further provided with logical scanning addresses. In the scanning operation for storage elements, a logical scanning address is given, and the scanning control apparatus transforms the logical scanning address into physical scanning addresses, by which storage elements rendered scan-in or scan-out are selected.

REFERENCES:
patent: 3614608 (1971-10-01), Giedd
patent: 3675217 (1972-07-01), Dauber
patent: 3723976 (1973-03-01), Alvarez
patent: 4451918 (1984-03-01), Gillette
patent: 4554664 (1985-11-01), Schultz
J. P. Roth "IBM Technical Disclosure Bulletin" vol. 25, No. 3A, Aug. 1982, pp. 1266-1267.
B. C. Rosales "IBM Technical Disclosure Bulletin" vol. 25, No. 25, Oct. 1982, pp. 2311-2313.

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