synchronisation issues with DMI transfer

[mohitnegi]

hello ,

 

I am transferring some data with the help of dmi and once that is transmitted an event is raised then i have 

some process sensitive to that event ..

my question is how would i know that data is transmitted with the help of dmi.

[Philipp A Hartmann]

It's called "direct memory interface", because it's a direct access to a target's memory range.  The target has no way to observe accesses from initiators to the currently allowed DMI ranges.  If the target requires to observe such accesses, you should not grant DMI access for these address ranges during the relevant communication states/phases.  Usually, DMI is preferred for the plain memory parts of the target's interface, while (control) registers often require explicit TLM transactions for that reason.

 

hth,
Philipp