Single competitor arbitration scheme for common bus

Details Single competitor arbitration scheme for common bus Single competitor arbitration scheme for common bus

1990-10-29

1992-07-21

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 851, H04J 302

Patent

active

051329670

ABSTRACT:
The invention discloses a single competitor arbitration code for determining if only one communications module is contending for a communication data bus and gives that module access within two bus clock cycles. An aggregate code is generated by using the true and complement of the module ID. A check code for each bit is determined by adding the aggregate code for the bit and its adjacent bit. If the check code contains any zeros, then more than one module is contending for the bus. The 10-bit single arbitration scheme allows for error detection and correction on a 32-bit data bus.

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