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ATmega8A Data Sheet

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21 16-bit Timer/Counter1
21.11 Register Description

Introduction
Features
1 Description
2 Configuration Summary
3 Ordering Information
4 Block Diagram
5 Pin Configurations
6 I/O Multiplexing
7 Resources
8 Data Retention
9 About Code Examples
10 Capacitive Touch Sensing
11 AVR CPU Core
12 AVR Memories
13 System Clock and Clock Options
14 Power Management and Sleep Modes
15 System Control and Reset
16 Interrupts
17 External Interrupts
18 I/O Ports
19 8-bit Timer/Counter0
20 Timer/Counter0 and Timer/Counter1 Prescalers
21 16-bit Timer/Counter1
- 21.1 Features
- 21.2 Overview
- 21.3 Accessing 16-bit Registers
- 21.4 Timer/Counter Clock Sources
- 21.5 Counter Unit
- 21.6 Input Capture Unit
- 21.7 Output Compare Units
- 21.8 Compare Match Output Unit
- 21.9 Modes of Operation
- 21.10 Timer/Counter Timing Diagrams
- 21.11 Register Description
  - 21.11.1 TCCR1A – Timer/Counter1 Control Register A
    TCCR1A – Timer/Counter1 Control Register A
  - 21.11.2 TCCR1B – Timer/Counter1 Control Register B
    TCCR1B – Timer/Counter1 Control Register B
  - 21.11.3 TCNT1L – Timer/Counter1 Low byte
    TCNT1L – Timer/Counter1 Low byte
  - 21.11.4 TCNT1H – Timer/Counter1 High byte
    TCNT1H – Timer/Counter1 High byte
  - 21.11.5 OCR1AL – Output Compare Register 1 A Low byte
    OCR1AL – Output Compare Register 1 A Low byte
  - 21.11.6 OCR1AH – Output Compare Register 1 A High byte
    OCR1AH – Output Compare Register 1 A High byte
  - 21.11.7 OCR1BL – Output Compare Register 1 B Low byte
    OCR1BL – Output Compare Register 1 B Low byte
  - 21.11.8 OCR1BH – Output Compare Register 1 B High byte
    OCR1BH – Output Compare Register 1 B High byte
  - 21.11.9 ICR1L – Input Capture Register 1 Low byte
    ICR1L – Input Capture Register 1 Low byte
  - 21.11.10 ICR1H – Input Capture Register 1 High byte
    ICR1H – Input Capture Register 1 High byte
  - 21.11.11 TIMSK – Timer/Counter Interrupt Mask Register
    TIMSK – Timer/Counter Interrupt Mask Register
  - 21.11.12 TIFR – Timer/Counter Interrupt Flag Register
    TIFR – Timer/Counter Interrupt Flag Register
22 8-bit Timer/Counter2 with PWM and Asynchronous Operation
23 SPI – Serial Peripheral Interface
24 USART - Universal Synchronous and Asynchronous serial Receiver and Transmitter
25 TWI - Two-wire Serial Interface
26 AC - Analog Comparator
27 ADC - Analog to Digital Converter
28 BTLDR - Boot Loader Support – Read-While-Write Self-Programming
29 MEMPROG- Memory Programming
30 Electrical Characteristics – TA = -40°C to 85°C
31 Electrical Characteristics – TA = -40°C to 105°C
32 Typical Characteristics – TA = -40°C to 85°C
33 Typical Characteristics – TA = -40°C to 105°C
34 Register Summary
35 Instruction Set Summary
36 Packaging Information
37 Errata
38 Appendix A: Revision History
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21.11 Register Description

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