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Microcontroller Architectures

Two types of architectures are standard in microcontrollers, that is, Von Neumann and Harvard architectures.

Von Neumann Architecture

Von Neumann architecture is used by a large percentage of microcontrollers. It places all memory space on the same bus; instruction and data also use the same bus.

Harvard Architecture

Harvard architecture (utilized by PIC microcontrollers) places code and data on separate buses, which permits them to be fetched simultaneously, resulting in an improved performance.

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One response to “Microcontroller Architectures”

  1. […] Von Neumann and Harvard architectures are examples of single-instruction stream, single-data stream (SISD) architectures. One stream of […]

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