Bus management method

Details Bus management method Bus management method

H - Electricity

04

L

H04L 12/403 (2006.01) H04L 12/64 (2006.01)

Patent

CA 2144970

A bus management node 11 has a register for channels in use REG1 and a bus capacity register REG2. Before starting the synchronous communication, each node 12 transmits a read-out command to the register for channels in use REG1 and the register for channels in use REG1 in order to read out their contents for ascertaining the number of the un-used channel and the residual capacity. If there is any un-used channel and any residual bus capacity, the node 12 transmits write commands to these registers REG1 and REG2 so that the number of the channel to be in use and the capacity of the bus to be in use will be stored in the register for channels in use REG1 and the bus capacity register REG2. This enables bus management to be achieved easily in a system performing synchronous communication between plural nodes connected to the bus.

L'invention concerne un noeud de gestion de bus (11) avec un registre des canaux utilisés REG1 et un registre de capacité de bus REG2. Avant que ne commence la communication synchrone, chaque noeud (12) transmet une instruction de lecture aux registres REG1 et REG2 pour en lire le contenu de manière à vérifier les canaux disponibles et la capacité de bus. Lorsqu'un canal n'est pas utilisé et que la capacité de bus demeure, le noeud (12) transmet une instruction d'écriture aux registres REG1 et REG2 de sorte que le nombre de canaux utilisés et la capacité de bus utilisés sont enregistrés dans l'un et l'autre, respectivement. Ainsi, les bus peuvent être gérés par une méthode simple dans un système qui réalise la communication synchrone entre une multitude de noeuds raccordés aux bus.

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