Atmel AT90PWM3 Microcontroller IC Manuals

Manuals and User Guides for Atmel AT90PWM3 Microcontroller IC. We have 1 Atmel AT90PWM3 Microcontroller IC manual available for free PDF download: Manual

Atmel AT90PWM3 Manual

Atmel AT90PWM3 Manual (361 pages)

8-bit AVR Microcontroller with 8K Bytes In-System Programmable Flash

Brand: Atmel | Category: Microcontrollers | Size: 4 MB

Table of Contents

1 History

2
2 Disclaimer

2
3 Pin Configurations

3
- Pin Descriptions
  4
4 Overview

6
- Block Diagram
  7
- Pin Descriptions
  8
- About Code Examples
  9
5 AVR CPU Core

10
- Introduction
  10
- Architectural Overview
  10
- ALU - Arithmetic Logic Unit
  11
- Status Register
  12
- General Purpose Register File
  13
- Stack Pointer
  14
- Instruction Execution Timing
  14
- Reset and Interrupt Handling
  15
6 Memories

18
- In-System Reprogrammable Flash Program Memory
  18
- SRAM Data Memory
  18
- EEPROM Data Memory
  20
- I/O Memory
  26
- General Purpose I/O Registers
  26
7 System Clock

28
- Clock Systems and Their Distribution
  28
- Clock Sources
  30
- Default Clock Source
  31
- Low Power Crystal Oscillator
  31
- Calibrated Internal RC Oscillator
  32
- Pll
  34
- 128 Khz Internal Oscillator
  36
- External Clock
  36
- Clock Output Buffer
  37
- System Clock Prescaler
  37
8 Power Management and Sleep Modes

40
- Idle Mode
  41
- ADC Noise Reduction Mode
  41
- Power-Down Mode
  41
- Standby Mode
  41
- Power Reduction Register
  42
- Minimizing Power Consumption
  43
9 System Control and Reset

45
- Internal Voltage Reference
  50
- Watchdog Timer
  51
10 Interrupts

56
- Interrupt Vectors in AT90PWM2/2B/3/3B
  56
11 O-Ports

61
- Introduction
  61
- Ports as General Digital I/O
  62
- Alternate Port Functions
  66
- Register Description for I/O-Ports
  77
12 External Interrupts

80
13 Timer/Counter0 and Timer/Counter1 Prescalers

82
14 8-Bit Timer/Counter0 with PWM

85
- Overview
  85
- Timer/Counter Clock Sources
  86
- Counter Unit
  86
- Output Compare Unit
  87
- Compare Match Output Unit
  89
- Modes of Operation
  90
- Timer/Counter Timing Diagrams
  94
- 8-Bit Timer/Counter Register Description
  95
16 Bit Timer/Counter1 with PWM

102
- Overview
  102
- Accessing 16-Bit Registers
  104

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