at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 315

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

7734M–AVR–03/10
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Features ..................................................................................................................1
Products Configuration ..........................................................................................2
Pin Configurations .................................................................................................3
AVR CPU Core .......................................................................................................8
Memories ...............................................................................................................16
System Clock and Clock Options .........................................................................27
Power Management and Sleep Modes .................................................................44
3.1Pin Descriptions ....................................................................................................................... 6
4.1Introduction .............................................................................................................................. 8
4.2Architectural Overview ............................................................................................................ 8
4.3ALU – Arithmetic Logic Unit .................................................................................................. 9
4.4Status Register .......................................................................................................................... 9
4.5General Purpose Register File ................................................................................................ 11
4.6Stack Pointer .......................................................................................................................... 12
4.7Instruction Execution Timing ................................................................................................. 12
4.8Reset and Interrupt Handling ................................................................................................. 13
5.1In-System Reprogrammable Flash Program Memory ........................................................... 16
5.2SRAM Data Memory ............................................................................................................. 16
5.3EEPROM Data Memory ........................................................................................................ 18
5.4Fuse Bits ................................................................................................................................. 22
5.5I/O Memory ............................................................................................................................ 26
5.6General Purpose I/O Registers ............................................................................................... 26
6.1Clock Systems and their Distribution ..................................................................................... 27
6.2Clock Sources ......................................................................................................................... 28
6.3Dynamic Clock Switch ........................................................................................................... 35
6.4System Clock Prescaler .......................................................................................................... 38
6.5Register Description ............................................................................................................... 38
7.1Sleep Modes ........................................................................................................................... 44
7.2Idle Mode ............................................................................................................................... 44
7.3ADC Noise Reduction Mode ................................................................................................. 45
7.4Power-down Mode ................................................................................................................. 45
7.5Standby Mode ........................................................................................................................ 45
7.6Power Reduction Register ...................................................................................................... 45
7.7Minimizing Power Consumption ........................................................................................... 45
AT90PWM81
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