Any body worked on USB 2.0.

[prashanthaditya]

I am designing a SDRAM controller with AXI interface for a USB device.
Can any body tell me how the communication takes place between SDRAM controller, Processor and Protocol Engine?
I mean for read or write process whether the protocol engine will send signals directly to the controller or it will interrupt the processor so that processor can send the required information to sdram controller through AXI bus?
Thanking you all !!!

 

[x571]

I think controller takes care of everything and it has two port one directly mapped into system memory space and another for controller setup