Control arrangement for magnetic bubble memories

Details Control arrangement for magnetic bubble memories Control arrangement for magnetic bubble memories

1981-09-29

1984-09-04

Shaw, Gareth D.

Boots, shoes, and leggings

365 15, G11C 1908

Patent

active

044701284

ABSTRACT:
An arrangement for incorporating a magnetic bubble memory (MBM) into a system having a system processor and a direct access storage (RAM) utilizes digital command words that represent basic MBM data operations. The processor controls the MBM indirectly by assembling strings of command words in RAM which are transferred to a control interface individually by a direct memory access device. The interface then translates the command words into a set of control signals that are applied to the drive system of the MBM. Each string of command words preferably corresponds to a complete memory read or write operation or a major portion thereof.

REFERENCES:
patent: 4128891 (1978-12-01), Lin et al.
patent: 4159412 (1979-06-01), Naden et al.
patent: 4161788 (1979-07-01), Rosenblum
patent: 4183090 (1980-01-01), Furukawa et al.
patent: 4221003 (1980-09-01), Chang et al.
patent: 4225941 (1980-09-01), Moran
patent: 4237544 (1980-12-01), Bonyaard
"Bubble Memories Impact and Opportunity", Anderson/Bogart, Aug. 1977, Chapter 4, pp. 14-20.

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