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Microprocessors
are most commonly used as the
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CPU
in microcomputer systems. Microcontrollers
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are
used in small, minimum component
designs
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performing
control-oriented activities.
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Microprocessor
instruction sets are “processing
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intensive”,
implying powerful addressing modes
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with
instructions catering to large volumes of data.
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Their
instructions operate on nibbles, bytes, etc.
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Microcontrollers
have instruction sets catering to
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the
control of inputs and outputs. Their instructions
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operate
also on a single bit. E.g., a motor may be
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turned
ON and OFF by a 1-bit output port.
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