
3
7682C–AUTO–04/08
AT90CAN32/64/128
12.9
8-bit Timer/Counter Register Description ........................................................109
13
16-bit Timer/Counter (Timer/Counter1 and Timer/Counter3) ........... 113
13.1
Features ..........................................................................................................113
13.2
Overview .........................................................................................................113
13.3
Accessing 16-bit Registers .............................................................................116
13.4
Timer/Counter Clock Sources .........................................................................119
13.5
Counter Unit ....................................................................................................120
13.6
Input Capture Unit ...........................................................................................121
13.7
Output Compare Units ....................................................................................123
13.8
Compare Match Output Unit ...........................................................................125
13.9
Modes of Operation ........................................................................................126
13.10 Timer/Counter Timing Diagrams .....................................................................134
13.11 16-bit Timer/Counter Register Description ......................................................135
14
8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 145
14.1
Features ..........................................................................................................145
14.2
Overview .........................................................................................................145
14.3
Timer/Counter Clock Sources .........................................................................147
14.4
Counter Unit ....................................................................................................147
14.5
Output Compare Unit ......................................................................................148
14.6
Compare Match Output Unit ...........................................................................149
14.7
Modes of Operation ........................................................................................150
14.8
Timer/Counter Timing Diagrams .....................................................................154
14.9
8-bit Timer/Counter Register Description ........................................................156
14.10 Asynchronous operation of the Timer/Counter2 .............................................159
14.11 Timer/Counter2 Prescaler ...............................................................................162
15
Output Compare Modulator - OCM ..................................................... 164
15.1
Overview .........................................................................................................164
15.2
Description ......................................................................................................164
16
Serial Peripheral Interface – SPI ......................................................... 167
16.1
Features ..........................................................................................................167
16.2
SS Pin Functionality ........................................................................................171
16.3
Data Modes .....................................................................................................174
17
USART (USART0 and USART1) .......................................................... 176
17.1
Features ..........................................................................................................176