Preservation of priority in computer bus arbitration

Details Preservation of priority in computer bus arbitration Preservation of priority in computer bus arbitration

1992-07-31

1993-11-23

Shaw, Dale M.

Boots, shoes, and leggings

364DIG1, 3642426, 3642428, 36424292, G06F 1300, G06F 1336, G06F 13368

Patent

active

052652238

ABSTRACT:
A method and circuitry for controlling priority of devices contending for access to a data communications link. Each device capable of contending for access contains a priority register which indicates the relative priority of every device capable of contending for access. After gaining access to the link, a device may optionally signal to all devices to update priority. When priority is updated, the device signaling priority update is moved to lowest priority. Inhibiting the signal to update priority permits a device to maintain priority. Systems using the method may be configured with a fair arbitration protocol (least recently accessed has highest priority), with fixed priority protocol, or with priority protocols that can be modified in real time.

REFERENCES:
patent: 4237534 (1980-12-01), Felix
patent: 4536839 (1985-08-01), Shah et al.
patent: 4620278 (1986-10-01), Ellsworth
patent: 4633394 (1986-12-01), Georgiou et al.
patent: 4719569 (1988-01-01), Ludemann et al.
patent: 4760515 (1988-07-01), Malmquist et al.
patent: 4814974 (1989-03-01), Narayanan et al.
patent: 4920486 (1990-04-01), Nielsen
patent: 4949247 (1990-08-01), Stephenson et al.
patent: 4953081 (1990-08-01), Feal et al.
patent: 4974148 (1990-11-01), Matteson
patent: 4979099 (1990-12-01), Milia et al.
patent: 4987529 (1991-01-01), Craft et al.
patent: 5016162 (1991-05-01), Epstein et al.
patent: 5068782 (1991-11-01), Scheuneman et al.

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