User manual

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3.3 Mega 128
Mega128 overzicht
De microcontroller Atmega 128 komt uit de AVR –familie van ATMEL. Hij is een low-power
microcontroller met Advanced RISC Architecture. Hier volgt een korte samenstelling van de
hardware resources:
• 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