Hi,
The USB controller driver implements the real send/receive function. Implementations are different
for different controllers. The supported controller drivers are KHCI, EHCI, IP3511HS and IP3511FS.
You can find more information about these controller drivers in the USB Stack Host Reference Manual and USB Stack Device Reference Manual, these document are located, after install MCUXpresso SDK at the path:
<LPCXpresso54608>\docs\usb
Have a great day,
Sol
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