Tag: Microprocessors
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Main Features of Intel 8086 Microprocessor
8-bit microprocessors are limited in their speed (the number of instructions that can be executed in 1 s), directly addressable memory, data handling capability, and so forth. Innovations in semiconductor technology have made it possible for the manufacturers to develop 16-bit, 32-bit, 64-bit and even larger-bit microprocessors. In this article, we look at the main…
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How a Microcontroller can be used in a Temperature Measurement System
The figure below illustrates the key elements of a temperature measurement system employing a MC68HC11 microcontroller. The temperature sensor provides a voltage proportional to the temperature; an example of such a sensor is LM25 (a temperature sensor that can be used with an analogue to digital converter like ADC0804 to give a digital output suitable…
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Data Registers
Data registers are used in microcomputers to hold data temporarily. Normally this data can be accessed faster than if it were to be fetched from the memory. The figure below shows a 4-bit data register that utilizes a negative edge-triggered D flip-flops to transfer data from four data lines to the outputs of four AND…
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Peripheral Devices used with Microprocessors
Microprocessors and peripheral devices provide a complete solution in enhancing complex application environments. In this article, we look at some of the common peripheral devices that are used along with the microprocessor in a microcomputer system. The different peripheral devices used in a microcomputer system include: Programmable Counter/Timer A programmable counter/timer is used for the…
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SIMD, MISD & MIMD Multiple Processor Architectures
Introduction Parallel processing, in which applications are partitioned into multiple tasks that are executed concurrently by multiple processors is used for high-throughput needs where even the single fastest computer cannot be good enough. Multiple processor system architectures differ widely in the number of processors used, the techniques in which applications are partitioned and mapped onto…
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The Pentium Series of Microprocessors
The Pentium processors have a 64-bit data bus which is a major advancement in personal computer CPU design. In actual fact, the Pentium family of processors has its origins in the Intel 486 processor, and has similar instruction set with a few additional instructions. Pentium Series (P5, P54 and P54C) of Microprocessors The first Pentium…
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Computer Memory Organization
A computer system uses memory elements for storing program instructions, data, and other information. From the perspective of the instruction set, a memory is an array of words, each identified by a unique address that indicates its location within the memory. In other words, each memory location is assigned a unique address that identifies a…
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The Intel 8085 Microprocessor
The 8085 Microprocessor is one of the most popular microprocessors. In this article we look at some of the basic features and pin-out configuration of this microprocessor. The block diagram of the 8085 microprocessor is shown below: 8085 Microprocessor Registers The 8085 microprocessor registers include an 8-bit accumulator, an 8-bit flag register (five 1-bit flags,…