Datasheet

v
7766F–AVR–11/10
ATmega16/32U4
21.8Speed Control .....................................................................................................260
21.9Memory management .........................................................................................260
21.10PAD suspend ....................................................................................................261
21.11Plug-in detection ................................................................................................262
21.12Registers description .........................................................................................263
21.13USB Software Operating modes .......................................................................265
22 USB Device Operating modes ............................................................ 266
22.1Introduction ..........................................................................................................266
22.2Power-on and reset .............................................................................................266
22.3Endpoint reset .....................................................................................................266
22.4USB reset ............................................................................................................267
22.5Endpoint selection ...............................................................................................267
22.6Endpoint activation ..............................................................................................267
22.7Address Setup .....................................................................................................268
22.8Suspend, Wake-up and Resume ........................................................................269
22.9Detach .................................................................................................................269
22.10Remote Wake-up ..............................................................................................270
22.11STALL request ..................................................................................................270
22.12CONTROL endpoint management ....................................................................271
22.13OUT endpoint management ..............................................................................272
22.14IN endpoint management ..................................................................................274
22.15Isochronous mode .............................................................................................275
22.16Overflow ............................................................................................................276
22.17Interrupts ...........................................................................................................276
22.18Registers ...........................................................................................................277
23 Analog Comparator ............................................................................. 289
23.1Analog Comparator Multiplexed Input .................................................................291
24 Analog to Digital Converter - ADC ..................................................... 292
24.1Features ..............................................................................................................292
24.2Operation .............................................................................................................294
24.3Starting a Conversion ..........................................................................................294
24.4Prescaling and Conversion Timing ......................................................................295
24.5Changing Channel or Reference Selection .........................................................298
24.6Temperature Sensor ...........................................................................................299
24.7ADC Noise Canceler ...........................................................................................301