Since digital data is usually stored in the form bits, digital memory devices such as the computer random access memory (RAM) requires a way for storing and switching between the two binary states. A flip-flop is a sequential logic device … Read More
How to Interface PIC Microcontroller to Input & Output Devices
In this article, we discuss how to interface the PIC microcontroller to various types of input and output devices. A key point to recall when dealing with PIC is that, each pin in the I/O ports may be configured in … Read More
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 … Read More
6 Types of Microprocessor Addressing Modes
The MOV Instruction in Intel 8051 (MCS-51) Microcontroller
The MOV instruction tells the CPU to move (in actual fact COPY) the source operand to the destination operand.
MOV destination, source ; copy source to destinationProgramming in assembly language requires that at least you understand the architecture of … Read More
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 … Read More
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 … Read More
How to Interface LCD Display to a Microcontroller
LCD crystal displays allow a better user interface compared with LED displays as it is much easier to display text messages in LCD displays. They also consume much less power than LED displays. Nonetheless, LED displays have better intensity than … Read More
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 … Read More
Basic Microprocessor Instructions
Microprocessors perform various basic operations that include data transfer instructions, arithmetic instructions, logic instructions, control transfer instructions and machine control operations. This set of commands (instructions set) used to control the functions of a microprocessor is specific to a given … Read More