Other Parts Discussed in Thread: UCD9090A
I am using the above mentioned EVM with Fusion Digital Power Designer V7.7.1. My target device is UCD9090A. My application circuit is part of an Automotive ECU. In my application circuit, I need to use PMBUS_CTRL line to initiate power up sequencing. To state the obvious, when I download my configuration on eval board, it will require me to control PMBUS_CTRL pin externally. But since on eval board, this pin is connected to TUSB3210PM P0.3 (albeit via a 33R), the TUSB3210PM device interferes with my control of CTRL pin. By removing that series 33R (R52), thereby disconnecting P0.3, this interference goes away. But I don't want to continue removing and replacing R52 on ongoing basis, and would like to keep R52 in place.
Is there a way to configure the TUSB3210 P0.3 to an input, such that it does not interfere with an external signal injection on CTRL pin?
