AT32UC3A3256S_2 Datasheet, PDF (753/1014 Pages) ATMEL Corporation – 32-bit AVR®Microcontroller

AT32UC3A3/A4
26.8.4
USB Pipe/Endpoint n FIFO Data Register (USBFIFOnDATA)
The application has access to the physical DPRAM reserved for the Endpoint/Pipe through a
64KB logical address space. The application can access a 64KB buffer linearly or fixedly as the
DPRAM address increment is fully handled by hardware. Byte, half-word and word access are
supported. Data should be access in a big-endian way.
Disabling the USBB (by writing a zero to the USBE bit) does not reset the DPRAM.
32072C–AVR32–2010/03
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