Rainbow Electronics ATmega128RFA1 - Manual (Page 519)

519
8266A-MCU Wireless-12/09
ATmega128RFA1
13.1 Resetting the AVR ............................................................................................ 176
13.2 Reset Sources .................................................................................................. 176
13.3 Internal Voltage Reference............................................................................... 179
13.4 Watchdog Timer ............................................................................................... 180
13.5 Register Description ......................................................................................... 183
14 I/O-Ports......................................................................................... 186
14.1 Introduction....................................................................................................... 186
14.2 Ports as General Digital I/O.............................................................................. 187
14.3 Alternate Port Functions................................................................................... 191
14.4 Register Description ......................................................................................... 204
15 Interrupts ....................................................................................... 211
15.1 Interrupt Vectors in ATmega128RFA1 ............................................................. 211
15.2 Reset and Interrupt Vector Placement ............................................................. 213
15.3 Moving Interrupts Between Application and Boot Section ............................... 216
15.4 Register Description ......................................................................................... 216
16 External Interrupts ........................................................................ 218
16.1 Pin Change Interrupt Timing ............................................................................ 218
16.2 Register Description ......................................................................................... 219
17 8-bit Timer/Counter0 with PWM ................................................... 226
17.1 Features ........................................................................................................... 226
17.2 Overview........................................................................................................... 226
17.3 Timer/Counter Clock Sources .......................................................................... 227
17.4 Counter Unit ..................................................................................................... 227
17.5 Output Compare Unit ....................................................................................... 228
17.6 Compare Match Output Unit............................................................................. 230
17.7 Modes of Operation .......................................................................................... 232
17.8 Timer/Counter Timing Diagrams ...................................................................... 236
17.9 Register Description ......................................................................................... 238
18 16-bit Timer/Counter (Timer/Counter 1, 3, 4, and 5)................... 244
18.1 Features ........................................................................................................... 244
18.2 Overview........................................................................................................... 244
18.3 Accessing 16-bit Registers............................................................................... 246
18.4 Timer/Counter Clock Sources .......................................................................... 249
18.5 Counter Unit ..................................................................................................... 249
18.6 Input Capture Unit ............................................................................................ 250
18.7 Output Compare Units...................................................................................... 252