AT90USB646 datasheet(431/435 Pages) ATMEL

431 / 435 page

7593D–AVR–07/06

AT90USB64/128

USB Device Operating modes ............................................................ 269

22.1Introduction ..........................................................................................................269

22.2Power-on and reset .............................................................................................269

22.3Speed identification on startup ............................................................................269

22.4Endpoint reset .....................................................................................................270

22.5USB reset ............................................................................................................270

22.6Endpoint selection ...............................................................................................270

22.7Endpoint activation ..............................................................................................270

22.8Address Setup .....................................................................................................271

22.9Suspend, Wake-up and Resume .........................................................................272

22.10Detach ...............................................................................................................272

22.11Remote Wake-up ...............................................................................................273

22.12STALL request ...................................................................................................273

22.13CONTROL endpoint management ....................................................................274

22.14OUT endpoint management ..............................................................................275

22.15IN endpoint management ..................................................................................277

22.16Isochronous mode .............................................................................................278

22.17Overflow ............................................................................................................279

22.18Interrupts ...........................................................................................................279

22.19Registers ...........................................................................................................281

USB Host Operating Modes ................................................................ 293

23.1Pipe description ...................................................................................................293

23.2Detach .................................................................................................................293

23.3Power-on and Reset ............................................................................................293

23.4Device Detection .................................................................................................294

23.5Pipe Selection ......................................................................................................294

23.6Pipe Configuration ...............................................................................................294

23.7USB Reset ...........................................................................................................296

23.8Address Setup .....................................................................................................296

23.9Remote Wake-Up detection ................................................................................296

23.10USB Pipe Reset .................................................................................................296

23.11Pipe Data Access ..............................................................................................296

23.12Control Pipe management .................................................................................297

23.13OUT Pipe management .....................................................................................297

23.14IN Pipe management .........................................................................................298

23.15Interrupt system .................................................................................................299

AT90USB646 Datasheet(PDF) 431 Page - ATMEL Corporation