Datasheet

2
ATtiny4/5/9/10 [DATASHEET]
8127F–AVR–02/2013
7.4 Register Description ........................................................................................25
8 System Control and Reset .....................................................................27
8.1 Resetting the AVR ...........................................................................................27
8.2 Reset Sources .................................................................................................27
8.3 Watchdog Timer ..............................................................................................30
8.4 Register Description ........................................................................................32
9 Interrupts .................................................................................................35
9.1 Interrupt Vectors ..............................................................................................35
9.2 External Interrupts ...........................................................................................36
9.3 Register Description ........................................................................................37
10 I/O Ports ..................................................................................................40
10.1 Overview ..........................................................................................................40
10.2 Ports as General Digital I/O .............................................................................41
10.3 Alternate Port Functions ..................................................................................45
10.4 Register Description ........................................................................................50
11 16-bit Timer/Counter0 ............................................................................52
11.1 Features ..........................................................................................................52
11.2 Overview ..........................................................................................................52
11.3 Clock Sources .................................................................................................54
11.4 Counter Unit ....................................................................................................55
11.5 Input Capture Unit ...........................................................................................56
11.6 Output Compare Units .....................................................................................58
11.7 Compare Match Output Unit ............................................................................60
11.8 Modes of Operation .........................................................................................61
11.9 Timer/Counter Timing Diagrams ......................................................................69
11.10 Accessing 16-bit Registers ..............................................................................70
11.11 Register Description ........................................................................................72
12 Analog Comparator ................................................................................80
12.1 Register Description ........................................................................................80
13 Analog to Digital Converter ...................................................................82
13.1 Features ..........................................................................................................82
13.2 Overview ..........................................................................................................82
13.3 Operation .........................................................................................................82
13.4 Starting a Conversion ......................................................................................83
13.5 Prescaling and Conversion Timing ..................................................................84