Atmel AVR XMEGA AU series, Manual

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8331B–AVR–03/12
Atmel AVR XMEGA AU
20.16 Register Summary – USB Module
20.17 Register Summary – USB Endpoint
The address to the first configuration byte is (EPPTR[15:0] + 16 × endpoint address) for OUT
endpoints and (EPPTR[15:0] + 16 × endpoint a 8) for IN endpoints.
20.18 Register Summary – Frame
The address to the frame configuration byte is (MAXEP + 1) << 4. For instance with MAXEP = 3,
the first address would be located at offset address 0x40.
20.19 USB Interrupt Vector Summary
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
+0x00 CTRLA ENABLE SPEED FIFOEN STFRNUM MAXEP[3:0] 248
+0x01 CTRLB – – – PULLRST – RWAKEUP GNACK ATTACH 248
+0x02 STATUS – – – – UPRESUME RESUME SUSPEND BUSRST 249
+0x03 ADDR – ADDR[6:0] 250
+0x04 FIFOWP – – – FIFOWP[4:0] 250
+0x05 FIFORP – – – FIFORP[4:0] 250
+0x06 EPPTRL EPPTR[7:0] 251
+0x07 EPPTRH EPPTR[15:8] 251
+0x08 INTCTRLA SOFIE BUSEVIE BUSERRIE STALLIE – – INTLVL[1:0] 251
+0x09 INTCTRLB – – – – – – TRNIE SETUPIE 252
+0x0A INFLAGSACLR SOFIF SUSPENDIF RESUMEIF RSTIF CRCIF UNFIF OVFIF STALLIF 252
+0x0B INFLAGSASET SOFIF SUSPENDIF RESUMEIF RSTIF CRCIF UNFIF OVFIF STALLIF 252
+0x0C INFLAGSBCLR – – – – – – TRNIF SETUPIF 253
+0x0D INFLAGSBSET – – – – – – TRNIF SETUPIF 253
+0x0E Reserved – – – – – – – –
+0x0F Reserved – – – – – – – –
+0x10-0X39 Reserved – – – – – – – –
+0x3A CALL CAL[7:0] 254
+0x3B CALH CAL[15:8] 254
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
+0x00 STATUS STALL OVF/UNF TRNCOMPL0 SETUP BANK BUSNACK1 BUSNACK0 TOGGLE 255
CRC TRNCOMPL1 Isochromous
+0x01 CTRL TYPE[1:0] MULTIPKT PINGPONG INTDSBL STALL BUFSIZE[1:0] 256
BUFSIZE[2:0] Isochromous
+0x02 CNTL CNT[7:0] 257
+0x03 CNTH AZLP – – – – – CNT[9:8] 258
+0x04 DATAPTRL DATAPTR[7:0] 258
+0x05 DATAPTRH DATAPTR[15:8] 258
+0x06 AUXDATAL AUXDATA[7:0] 259
+0x07 AUXDATAH AUXDATA[15:8] 259
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
+0x00 FRAMENUML FRAMENUM[7:0] 260
+0x01 FRAMENUMH FRAMEERR – – – – FRAMENUM[10:8] 260
Table 20-6. USB interrupt vectors and their word offset addresses.
Offset Source Interrupt Description
0x00 BUSEVENT_vect SOF, suspend, resume, bus reset, CRC, underflow, overflow, and stall error interrupts
0x02 TRNCOMPL_vect Transaction complete interrupt