ATMEGA644PV ATMEL [ATMEL Corporation], ATMEGA644PV Datasheet - Page 403

• Manufacturer Part Number: ATMEGA644PV
• Description: 8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

8011D–AVR–02/07
14 16-bit Timer/Counter1 with PWM ........................................................ 110
15 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 138
16 SPI – Serial Peripheral Interface ......................................................... 159
13.1 Features ...............................................................................................................92
13.2 Overview ..............................................................................................................92
13.3 Timer/Counter Clock Sources ..............................................................................93
13.4 Counter Unit .........................................................................................................93
13.5 Output Compare Unit ...........................................................................................94
13.6 Compare Match Output Unit .................................................................................96
13.7 Modes of Operation ..............................................................................................97
13.8 Timer/Counter Timing Diagrams ........................................................................101
13.9 Register Description ...........................................................................................103
14.1 Features .............................................................................................................110
14.2 Overview ............................................................................................................110
14.3 Accessing 16-bit Registers .................................................................................112
14.4 Timer/Counter Clock Sources ............................................................................115
14.5 Counter Unit .......................................................................................................116
14.6 Input Capture Unit ..............................................................................................117
14.7 Output Compare Units ........................................................................................119
14.8 Compare Match Output Unit ...............................................................................121
14.9 Modes of Operation ............................................................................................122
14.10 Timer/Counter Timing Diagrams ......................................................................129
14.11 Register Description .........................................................................................131
15.1 Features .............................................................................................................138
15.2 Overview ............................................................................................................138
15.3 Timer/Counter Clock Sources ............................................................................139
15.4 Counter Unit .......................................................................................................140
15.5 Output Compare Unit .........................................................................................140
15.6 Compare Match Output Unit ...............................................................................142
15.7 Modes of Operation ............................................................................................143
15.8 Timer/Counter Timing Diagrams ........................................................................147
15.9 Asynchronous Operation of Timer/Counter2 ......................................................149
15.10 Timer/Counter Prescaler ..................................................................................151
15.11 Register Description .........................................................................................151
16.1 Features .............................................................................................................159
ATmega164P/324P/644P
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