SCANSTA112: SCANSTA112 multidrop question

Hi,

I will try to confirm as soon as possible.

Hi Vishesh

got it and appreciate your support

BRs

Brian

Brian Chan said:

Would both multi-master and signal reflection can be acceptable in this topology? Brian>> I think multi-master concern is two master will fight for control power 

multi-master may cause contention on the backplane TDI line.

Brian Chan said:

Any termination resister is recommend on debugger header and SCANSTA112 mux side? Brian>> I believe JTAG don't have such limitation. only USB/PCIe have those requirement

correct

Brian Chan said:

If we want to change the JATG mux to 1:2 on computer tray side, TMUX1574RSVR mux can be use in this topology

not sure  if TMUX1574RSVR  can handle the bus loading on the backplane if  multiple  SCANSTA112 is selected 

Brian Chan said:

Can SCANSTA112 cascade to another SCANSTA112? Brian>> I believe SCANSTA112 already have multidrop to support 7 support so it won't need any additional cascade topology?

I agree, 

Best

Brian Z

Hi Brian Z

1.How to identified the JTAG mux? By address?

2.This that OK for the below diagram? Place the device parallel to the SCANSTA112

BRs

Brian