Multiconfigural computers utilizing a time-shared bus

Details Multiconfigural computers utilizing a time-shared bus Multiconfigural computers utilizing a time-shared bus

1981-10-13

1984-11-06

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 1516

Patent

active

044815727

ABSTRACT:
A time-shared bus for use with digital computers. The computers are structured around a high-speed bidirectional time-shared bus, whereby both address and data are carried on the same lines. In a typical configuration, one or more processors, one or more memories and one or more peripheral (I/O) devices are coupled in parallel on the time shared bus, and in addition are each connected by respective control lines to a resource controller. The bus is multiplexed at a relatively high rate, whereby a continuous series of relatively short time slots or windows on the bus are provided. These time slots are selected to be as short as reasonably possible, as required to allow the settling of the bus to each new state as set by the then transmitting unit on the bus and to latch the transmitted information into the receiving unit for that time slot. Each unit on the bus has associated therewith a response time represented by a predetermined number of time slots between its receipt of a request for information and its providing of information onto the bus, which number of time slots delays is resident in both the respective unit controller and in a resource controller. Direct memory access, cache memories and other features are disclosed.

REFERENCES:
patent: 3573852 (1971-04-01), Watson et al.
patent: 3732374 (1973-05-01), Rocher et al.
patent: 3978451 (1976-08-01), Ito et al.
patent: 3993981 (1976-11-01), Cassarino, Jr. et al.
patent: 4161786 (1979-07-01), Hopkins et al.
patent: 4164787 (1979-08-01), Aranguren
patent: 4312036 (1982-01-01), Porter et al.

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