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ATtiny26(L)
1477G–AVR–03/05
Power-down Mode.............................................................................................. 37
Standby Mode..................................................................................................... 38
Minimizing Power Consumption ......................................................................... 39
I/O Ports.............................................................................................. 41
Introduction......................................................................................................... 41
Ports as General Digital I/O................................................................................ 42
Alternate Port Functions ..................................................................................... 46
Register Description for I/O Ports....................................................................... 56
Interrupts............................................................................................ 57
Interrupt Vectors ................................................................................................. 57
Interrupt Handling ............................................................................................... 58
External Interrupt............................................................................... 62
Pin Change Interrupt........................................................................................... 62
Timer/Counters .................................................................................. 64
Timer/Counter0 Prescaler................................................................................... 64
Timer/Counter1 Prescaler................................................................................... 65
8-bit Timer/Counter0........................................................................................... 65
8-bit Timer/Counter1........................................................................................... 67
Watchdog Timer................................................................................. 78
Universal Serial Interface – USI........................................................ 80
Overview............................................................................................................. 80
Register Descriptions.......................................................................................... 81
Functional Descriptions ...................................................................................... 85
Alternative USI Usage ........................................................................................ 90
Analog Comparator ........................................................................... 91
Analog to Digital Converter .............................................................. 94
Features.............................................................................................................. 94
Operation............................................................................................................ 95
Prescaling and Conversion Timing..................................................................... 96
Changing Channel or Reference Selection ........................................................ 98
ADC Noise Canceler Function............................................................................ 99
ADC Conversion Result...................................................................................... 99
Scanning Multiple Channels ............................................................................. 105
ADC Noise Canceling Techniques ................................................................... 105
Offset Compensation Schemes........................................................................ 105
Memory Programming..................................................................... 107
Program and Data Memory Lock Bits............................................................... 107
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