Apparatus and method for a node to obtain access to a bus

Details Apparatus and method for a node to obtain access to a bus Apparatus and method for a node to obtain access to a bus

G - Physics

06

F

354/232

G06F 13/36 (2006.01) G06F 13/364 (2006.01)

Patent

CA 1303228

APPARATUS AND METHOD FOR A NODE TO OBTAIN ACCESS TO A BUS ABSTRACT OF THE INVENTION A node for obtaining access to a bus. In this arbi- tration method, the node receives a conditional grant. The node determines whether access to the bus will actually transfer to it. The node contains distributed logic that examines an extend bus cycle signal to determine whether it can become a transmit- ter to transfer messages on the bus. When the node becomes a transmitter, it generates an extend bus cycle signal to maintain access to the bus when executing a multi-cycle transfer, even though other nodes, perhaps with higher priorities, require access to the bus.

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