EZ-Host Kit is obsolete now. But you can download the kit contents from the below path:
In that, please refer the following path:
In this you can find how the SOF interrupt is handled.
Thank you for your reply. I will look at the assembly to understand the SOF ISR.
One more question. In the BIOS User Manual, the description of the HUSB_RESET_INT is below:
22.214.171.124 Software Interface
R1: Port number 0=USB-Port0
R0: time interval for USB reset in milliseconds.
This interrupt returns the speed on that port.
R0: Bit0 = 0 Full speed
Bit0 = 1 Slow speed
Bit1 = 1 No device
Bit1 = 0 Device is connected
Could you please help me understand the port mapping for R1?
On the EZ-HOST (CY7C67300), there are a total of 4 ports (1A,1B,2A,2B), but on the CY7C67200 there are only 2 ports (1A and 2A).
I'm attaching the keyboard to port 2A on the CY7C67200. Which USB Port number does that correspond to above?
Port 0 would be for port1A
Port 2 would be for port2A