TMS320C6416T: Understanding Data Strobe Signals in HPI Interface

Tool/software:

I'm working on a project involving an MPSoC and DSP communication through the Host Port Interface (HPI).  However, I'm having trouble understanding the role and functioning of the data strobe signals (HDS1 and HDS2) in this process.

Could someone please explain how the data strobe signals work in the HPI interface? Specifically, I would like to know:

1. The purpose of HDS1 and HDS2 signals.
2. How these signals synchronize data transfers between the host and the DSP.
3. Any timing considerations or best practices for using these signals effectively.