Atmel ATmega48A Manuals

Atmel ATmega48A Manuals

Manuals and User Guides for Atmel ATmega48A. We have 1 Atmel ATmega48A manual available for free PDF download: Manual

Atmel ATmega48A Manual

Atmel ATmega48A Manual (567 pages)

8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

Brand: Atmel | Category: Microcontrollers | Size: 21.15 MB

Table of Contents

Table of Contents

174
- Features
  1
- Pin Configurations
  2
  - Pin Descriptions
    3
- Overview
  5
  - Block Diagram
    5
  - Comparison between Processors
    6
- Resources
  8
- Data Retention
  8
- About Code Examples
  8
- Capacitive Touch Sensing
  8
- AVR CPU Core
  9
  - Overview
    9
  - ALU - Arithmetic Logic Unit
    10
  - Status Register
    10
  - General Purpose Register File
    12
  - Stack Pointer
    13
  - Instruction Execution Timing
    14
  - Reset and Interrupt Handling
    15
- AVR Memories
  17
  - Overview
    17
  - In-System Reprogrammable Flash Program Memory
    17
  - SRAM Data Memory
    19
  - EEPROM Data Memory
    20
  - I/O Memory
    21
  - Register Description
    22
- System Clock and Clock Options
  27
  - Clock Systems and Their Distribution
    27
  - Clock Sources
    28
  - Low Power Crystal Oscillator
    29
  - Full Swing Crystal Oscillator
    31
  - Low Frequency Crystal Oscillator
    33
  - Calibrated Internal RC Oscillator
    34
  - 8Khz Internal Oscillator
    35
  - External Clock
    35
  - Clock Output Buffer
    36
  - Timer/Counter Oscillator
    36
  - System Clock Prescaler
    36
  - Register Description
    38
- Power Management and Sleep Modes
  40
  - Sleep Modes
    40
  - BOD Disable
    41
  - Idle Mode
    41
  - ADC Noise Reduction Mode
    41
  - Power-Down Mode
    42
  - Power-Save Mode
    42
  - Standby Mode
    42
  - Extended Standby Mode
    43
  - Power Reduction Register
    43
  - Minimizing Power Consumption
    43
  - Register Description
    45
- System Control and Reset
  48
  - Resetting the AVR
    48
  - Reset Sources
    48
  - Power-On Reset
    49
  - External Reset
    50
  - Brown-Out Detection
    50
  - Watchdog System Reset
    51
  - Internal Voltage Reference
    51
  - Watchdog Timer
    52
  - Register Description
    56
- Interrupts
  59
- External Interrupts
  72
  - Pin Change Interrupt Timing
    72
  - Register Description
    73
- O-Ports
  77
  - Overview
    77
  - Ports as General Digital I/O
    78
  - Alternate Port Functions
    82
  - Register Description
    94
- 15 8-Bit Timer/Counter0 with PWM
  96
  - Features
    96
  - Overview
    96
  - Timer/Counter Clock Sources
    98
  - Counter Unit
    98
  - Output Compare Unit
    99
  - Compare Match Output Unit
    100
  - Modes of Operation
    101
  - Timer/Counter Timing Diagrams
    106
  - Register Description
    108
- 16-Bit Timer/Counter1 with PWM
  115
  - Features
    115
  - Overview
    115
  - Accessing 16-Bit Registers
    117
  - Timer/Counter Clock Sources
    120
  - Counter Unit
    121
  - Input Capture Unit
    122
  - Output Compare Units
    124
  - Compare Match Output Unit
    126
  - Modes of Operation
    127
  - Timer/Counter Timing Diagrams
    134
  - Register Description
    136
- Timer/Counter0 and Timer/Counter1 Prescalers
  143
  - Internal Clock Source
    143
  - Prescaler Reset
    143
  - External Clock Source
    143
  - Register Description
    145
- Mode
  173
  - Table of Contents
    174
- Mode
  175
- Mode
  176
- Change
  182
- Sck (Cpol
  326
Table of Contents

559

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