摘要:
Disclosed is a selector switch for use in forming an asynchronous network of concurrent processors where the selector switch receives a message from one input port and transmits it to one of two output ports. A path through the network which has been established can be cleared should it become apparent that that particular path has become locked in due to a malfunction of a component in one of the nodes or switches in the network.
摘要:
A four way selector switch for a five port module as a node in an asynchronous speed independent network of concurrent processors, each port of the module including an input selector switch and an output selector switch such that each selector switch has a plurality of output channels one for each of the output arbiter switches (except the arbiter switch associated with its own port). Each selector switch is adapted to select a particular output channel (arbiter switch) according to the initial bits received in the asynchronous speed independent message. In this manner, the module of the present invention can accommodate up to five simultaneous asynchronous message transmissions without nodal blocking although the average number of simultaneous messages that can be accommodated will be less. The respective arbiter and selector switches are provided with circuitry to respond to a clear signal that resets the corresponding arbiter and selector switches forming a particular transmission path should nodal blocking occur.