AT90USB646 datasheet(455/459 Pages) ATMEL

455 / 459 page

455

7593H–AVR–11/08

ATmega32U6/AT90USB64/128

USB Device Operating modes ............................................................ 267

22.1 Introduction ........................................................................................................267

22.2 Power-on and reset ...........................................................................................267

22.3 Endpoint reset ...................................................................................................267

22.4 USB reset ..........................................................................................................268

22.5 Endpoint selection .............................................................................................268

22.6 Endpoint activation ............................................................................................268

22.7 Address Setup ...................................................................................................269

22.8 Suspend, Wake-up and Resume .......................................................................270

22.9 Detach ...............................................................................................................270

22.10 Remote Wake-up .............................................................................................271

22.11 STALL request .................................................................................................271

22.12 CONTROL endpoint management ..................................................................272

22.13 OUT endpoint management ............................................................................273

22.14 IN endpoint management ................................................................................275

22.15 Isochronous mode ...........................................................................................276

22.16 Overflow ..........................................................................................................277

22.17 Interrupts .........................................................................................................277

22.18 Registers .........................................................................................................278

USB Host Operating Modes ................................................................ 290

23.1 Pipe description .................................................................................................290

23.2 Detach ...............................................................................................................290

23.3 Power-on and Reset ..........................................................................................290

23.4 Device Detection ...............................................................................................291

23.5 Pipe Selection ....................................................................................................291

23.6 Pipe Configuration .............................................................................................291

23.7 USB Reset .........................................................................................................293

23.8 Address Setup ...................................................................................................293

23.9 Remote Wake-Up detection ..............................................................................293

23.10 USB Pipe Reset ...............................................................................................293

23.11 Pipe Data Access ............................................................................................293

23.12 Control Pipe management ...............................................................................294

23.13 OUT Pipe management ...................................................................................294

23.14 IN Pipe management .......................................................................................295

23.15 Interrupt system ...............................................................................................296

23.16 Registers .........................................................................................................297

AT90USB646 Datasheet(PDF) 455 Page - ATMEL Corporation