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UCD90120A: EVM can access the UCD90124 but not the UCD90120A

Part Number: UCD90120A
Other Parts Discussed in Thread: UCD90SEQ64EVM-650, UCD90124, , USB-TO-GPIO

The UCD90SEQ64EVM-650 comes with a UCD90124 installed in the socket.  I was able to access and configure the UCD90124 with no issues.

I replaced the UCD90124 with a UCD90120A but can not access the UCD90120A with the Fusion tool.  Here is the warning message:

It appears that the tool recognized the PMBUS address but could not advance any further.  Any suggestions on how to resolve this issue?

Thanks,

Phil

856-7676-7676 ext 2277