UCD90160A: GPI status of a UCD906160A over the PMBus?

Michael T Schneider

Part Number: UCD90160A

Is there a way to read the GPI status of a UCD906160A over the PMBus. I’ve looked through the PMBus info on the TI site and didn’t see the GPIs in any of the registers.

over 4 years ago

0 yihe over 4 years ago

TI__Guru 66230 points

Yes, Customers can use GPIO_SELECT and GPIO_CONFIG as a pair to inquiry the status of any IOs. Please refer section 10.42 and 10.43 of

https://www.ti.com/lit/ug/slvu352g/slvu352g.pdf

The basic steps are:

1. write GPIO_SELECT command to select the target pin

2. read GPIO_CONFIG to know the status of the IO.

Regards

Yihe

Power management

Power management forum

UCD90160A: GPI status of a UCD906160A over the PMBus?