System and method for arbitrating multi-function access to a sys

Details System and method for arbitrating multi-function access to a sys System and method for arbitrating multi-function access to a sys

1997-06-03

1999-11-30

Myers, Paul R.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

710 45, G06F 1314

Patent

active

059960370

ABSTRACT:
A system arbitrator for a multi-function device is disclosed. The access arbitrator includes a bus access counter and comparator which are used to generate a bus request disable signal. The bus request disable signal for each function of the multi-function device is gated with the bus request signal for the function. As a function transfers data over the system bus, the access counter is incremented. When the access counter is incremented to a value which equals a predetermined maximum, the bus request disable signal becomes active and disables generation of bus requests for the function. In order to enable the bus signal generator for a function to begin generating bus requests, the access counters are reset when no bus request signals are being generated by any of the bus signal generators.

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