Hello,
I have a design which utilizes the UCD9222 to control two seperate power drivers. I have both of the Temp pins of the controller connected to the Tmon output pins of the drivers. I recently ran some tests with the GPIO-to-USB adapter connected to the PMBus header on my board and recorded the data monitored with the Smart Fusion Digital Power designer. Upon reviewing the logged data, I see a "READ_TEMPERATURE_2_1" command in the log. I can't find any mention of this command in the "UCD92xx Digital PWM System Controller PMBusCommand Reference" document. I expect that this is probably the command to read the value on the Temp2 pin of the UCD9222 device (if I am monitoring Rail 1 with the Fusion software). Can you please confirm? If I were monitoring Rail 2 with the software, would "READ_TEMPERATURE_2_1" be the command to read the value on the Temp1 pin?
Thanks very much.
-Courtney