Electrical computers and digital data processing systems: input/ – Access arbitrating
Patent
1997-05-19
2000-01-11
Ray, Gopal C.
Electrical computers and digital data processing systems: input/
Access arbitrating
710 57, 370447, 34082551, G06F 1300, G06F 1314
Patent
active
060147229
ABSTRACT:
A data communication system (2) provides a circuit and method for prioritizing and controlling the transfer of data to and from a plurality of communication channels (6-11). The data communication system defines a predetermined data threshold level (X,Y) for a data buffer (16-21) for each of the plurality of communication channels. A service request signal is generated for a one of the plurality of communication channels when a respective data buffer stores data to be transferred. The data communication system generates a threshold signal for a communication channel when a data value stored in a respective data buffer reaches a predetermined data threshold level of the data buffer. The priority levels of the communication channels which generate threshold and service request signals are then compared to determine a high priority communication channel. The highest priority communication channel is then serviced.
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Rudin Yehuda
Weitz Eliezer
Yeivin Yoram
Motorola Inc.
Ray Gopal C.
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