Bus device for use in a computer system having a synchronous bus

Details Bus device for use in a computer system having a synchronous bus Bus device for use in a computer system having a synchronous bus

1986-10-29

1988-08-09

Eng, David Y.

Boots, shoes, and leggings

G06F 1314, G06F 1338, G06F 1340

Patent

active

047632496

ABSTRACT:
A bus device is provided for use in a data processing system which includes a plurality of bus devices interconnected by a synchronous bus. The bus includes multiplexed data/address/arbitration lines which carry data, address, and arbitration information during respective data, command/address, and arbitration cycles. The bus also includes a BUSY line and a NO ARB line for controlling access to the data/address/arbitration lines. Where constructed as a memory device, the bus device includes memory circuits having a plurality of storage locations, and an interconnecting circuit which monitors the BUSY and NO ARB lines to identify various types of cycles on the bus, and which controls transmission of signals from the memory device over the bus in accordance with information derived by the monitoring means from the BUSY and NO ARB lines.

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