Hi Team,
My customer would like to know how AutomaticIDRequest bit behaves and I need to explain that function to them.
Please help me to understand the behavior of this bit.
From the explanation in Host interface guide, I understood a Behavior of AutomaticIDRequest as below.
[My understanding of AutomaticIDRequest bit behavior]
If this bit is set to "0", TPS65982 never issues Discover Identity command as Initiator when it’s working as DFP.
Therefore, EC needs to issue Discover Identity by 4cc command at Cable plug and DP alt process.
Then I I have 4 questions as followings.
1. Is my understanding above correct?
2. What is a difference between AutomaticIDRequest and AMIntrusiveMode?
3. How does the TPS65982 behave for the following commands when AutomaticIDRequest is set to "0"?
- Discover SVIDs
- Discover Modes
- Enter Mode
- Exit Mode
- Attention
4. Does TPS65982 automatically respond for all received VDM commands when it's in UFP and AutomaticIDRequest is set to "0"?
Regards,
Takashi Onawa