Patent ID: 7243282

Claim:
A system for implementing a plurality of remote diagnose register (“RDR”) chains, wherein each of the RDR chains comprises at least one RDR, the system comprising: a staging register having an input and an output; a multiplexer (“MUX”) including an output connected to the staging register input, a plurality of inputs each connected to a different one of the plurality of RDR chains, and at least one control input; and a demultiplexer (“DEMUX”) including an input connected to the staging register output, a plurality of outputs each connected to a different one of the plurality of RDR chains, and at least one control input, wherein responsive to execution of an instruction including a chain number identifying one of the plurality of RDR chains and an RDR number identifying an RDR of the identified RDR chain, the chain number is provided to the at least one control input of the MUX and to the at least one control input of the DEMUX.