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AVR studio 사용법.pdf a.pdf

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8bit avr_CPU c 코드 최적화 방법(Atmel 제공).pdf

ATmega128 datasheet

Features
• High-performance, Low-power AVR® 8-bit Microcontroller
• Advanced RISC Architecture
– 133 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers + Peripheral Control Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
– On-chip 2-cycle Multiplier
• Nonvolatile Program and Data Memories
– 128K Bytes of In-System Reprogrammable Flash
Endurance: 10,000 Write/Erase Cycles
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
– 4K Bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
– 4K Bytes Internal SRAM
– Up to 64K Bytes Optional External Memory Space
– Programming Lock for Software Security
– SPI Interface for In-System Programming
• JTAG (IEEE std. 1149.1 Compliant) Interface
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses and Lock Bits through the JTAG Interface
• Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
– Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode and
Capture Mode
– Real Time Counter with Separate Oscillator
– Two 8-bit PWM Channels
– 6 PWM Channels with Programmable Resolution from 2 to 16 Bits
– Output Compare Modulator
– 8-channel, 10-bit ADC
8 Single-ended Channels
7 Differential Channels
2 Differential Channels with Programmable Gain at 1x, 10x, or 200x
– Byte-oriented Two-wire Serial Interface
– Dual Programmable Serial USARTs
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with On-chip Oscillator
– On-chip Analog Comparator
• Special Microcontroller Features
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated RC Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
and Extended Standby
– Software Selectable Clock Frequency
– ATmega103 Compatibility Mode Selected by a Fuse
– Global Pull-up Disable
• I/O and Packages
– 53 Programmable I/O Lines
– 64-lead TQFP and 64-pad MLF
• Operating Voltages
– 2.7 - 5.5V for ATmega128L
– 4.5 - 5.5V for ATmega128
• Speed Grades
– 0 - 8 MHz for ATmega128L
– 0 - 16 MHz for ATmega128

• 특징
• 고성능, 저전력으로 동작하는 8비트의 마이크로 컨트롤러
• 향상된 RISC 구조
   - 133개의 기계어 명령을 가지며 거의 한 클럭에 명령어 하나를 실행.
   - 8비트 레지스터가 32개 있으며 16MHz에 16MIPS 동작속도를 가지고 곱셈기 동작시 2사이클 소요
• 메모리
   - 128K Bytes의 플래쉬 메모리
   - 4K Bytes의 EEPROM
   - 4K Bytes의 SRAM
   - 10,000번 플래쉬 100,000번 EEPROM을 쓰고 쓰고 지울수 있는 메모리 수명
   - 85도에서 20년, 25도에서 100년을 견디는 내구성
   - 64K Bytes의 외부메모리 확장 가능
• JTAG
   - 하드웨어 장비를 디버깅할 때 사용하는 표준인 JTAG채택
• 주변기 특징
   - 2개의 8비트 타이머/카운터
   - 2개의 16비트 타이머/카운터
   - 리얼 타임 카운터
   - 2개의 8비트 PWM 채널
   - 8채널, 10비트 ADC
   - Serial USART
   - SPI
   - Watchdog
• 특별한 마이크로 컨트롤러 특징
   - Brown-out
• 입/출력과 패키지
   - 53 Programmable I/O Lines
   - 64-lead TQFP and 64-pad QFN/MLF
• 구동 전압
   - 2.7~5.5V ATmega128L (L은 저전력용 MCU를 의미)
   - 4.5~5.5V ATmega128
• 속도
   - 0~8MHz ATmega128L
   - 0~16MHz ATmega128