Inventors:
Uoc H. Nguyen - Long Beach CA
George L. Eldridge - Long Beach CA
Otto Sperber - Huntington Beach CA
Assignee:
Xerox Corporation - Stamford CT
International Classification:
G06F 1338
Abstract:
A method is described for transferring data on a digital data bus system. The bus system includes a bus having a clock line for communicating a clock signal, address lines for communicating address signals, data lines for communicating data signals, and control lines for communicating control signals. A bus controller is connected to the bus. A plurality of devices are also connected to the bus. Each device has a predetermined address. The control lines include a bus grant line for communicating a bus grant signal that permits the devices addressed by the bus controller to send or receive data signals. According to the method, the bus controller generates a bus grant signal on the bus grant line and source address and destination address signals on the address lines. The devices receive the bus grant signal and the source address and destination address signals. The devices decode the source address and destination address signals in response to the bus grant signal.