Patent ID: 6697867
Filing Date: 2004-02-24
Classification: G06F

Abstract:
A system, comprising:a host system; a plurality of groups of peripheral devices, wherein each group of peripheral devices includes at least one peripheral device, and wherein each group of peripheral devices is configured to receive a group access signal for controlling accesses from the host system to the peripheral devices; and a host adapter configured for coupling the host system to the plurality of groups of peripheral devices, the host adapter comprising: a control register for storing a value for selecting one of the groups of peripheral devices; and signal routing logic coupled to the control register and to each of the groups of peripheral devices, wherein the signal routing logic is coupled to receive an access signal from the host system and route the access signal to the group access signal for the group of peripheral devices selected by the value stored in the control register, and wherein the group access signal for each of the remaining groups of peripheral devices is deasserted so that the groups of peripheral devices not selected by the value stored in the control register do not respond to accesses from the host system.