In-System Programming by On-chip Boot Program – Optional Boot Code Section with Independent Lock Bits – 128K Bytes of In-System Reprogrammable Flash – 32 x 8 General Purpose Working Registers + Peripheral Control Registers – 133 Powerful Instructions – Most Single Clock Cycle Execution High-performance, Low-power AVR® 8-bit Microcontroller.The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle.
The AVR core combines a rich instruction set with 32 general purpose working registers.
By executing powerful instructions in a single clock cycle, the ATmega128 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The ATmega128 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture.
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