how micro-processor and micro controller different from
architecture
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Answer Posted / abdus sattar mollah
Microprocessor's have Von Nueman architecture i.e an
computer architecture where the program memory and data
memory are in the same memory hardware chip.So,both source
code(instructions) and the data are transmitted using same
bus.Also,in microprocessor the main CPU unit is in the
microprocessor chip ,other accesories chip required are
interfaced with the microprocessor chip ,externally.
Microcontroller's have Harvard architecture i.e both
program memory and data memory are in separate dedicated
mem0ry chip .Thus,different distinct buses transmitts
program codes and data.This result in increased speed but
also increased complexity in hardware.Also,all other
accesories chip like memory chip,I/o chip,Serial transfer
chip(USART) are within the microcontroller single chip.
This is the basic difference in architecture, due to which
several other diffrenece like access,working varies.
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