B. E./B. Tech. Degree examination, april/may 2011 Sixth Semester


Compare Microprocessor and Microcontroller



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10. Compare Microprocessor and Microcontroller.
Microprocessor Microcontroller
1. Microprocessor contains ALU, general Microcontroller contains the circuitry of
Purpose register counter, clock timing microprocessor and in addition it has
Circuit and interrupt circuit. Builtin ROM, RAM, IO devices and
Counter.
2. It has many instructions to move data It has many instructions to move between memory and CPU. data between memory and CPU.
3. It has one or two bit handling it has many bit handling instructions. instruction .
4. Access times for memory and IO Less access times for builtin memory
Devices are more. and IO devices.
5. Microprocessor based system Microcontroller based system requires requires more hardware less hardware reducing PCB size and
Increasing the reliability.

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