Decentralized bus arbitration using distributed arbiters having

Details Decentralized bus arbitration using distributed arbiters having Decentralized bus arbitration using distributed arbiters having

1987-01-23

1988-05-17

Williams, Jr., Archie E.

Boots, shoes, and leggings

34082505, 34082551, G06F 1300, G06F 1318, G06F 1326, G06F 1336

Patent

active

047455489

ABSTRACT:
A silicon semiconductor wafer containing a plurality of silicon integrated circuits formed therein or attached thereto contains at least one data bus to which some of the circuits are connected. Each of the circuits coupled to the data bus contains an arbitration request circuit which selectively passes a signal that requests that its circuit be given access to the data bus so it can transmit information to another circuit on the wafer. In addition, each of the circuits coupled to the data bus has an arbitration circuit which detects which of any of the circuits coupled to the data bus is requesting access to the data bus and facilitates its circuit gaining access to the data bus if its circuit has a higher preselected priority than any other circuit which is simultaneously seeking access to the data bus. The distribution of the arbitration request circuits and of the arbitration circuits simplifies layout and tends to improve the speed of operation.

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