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 … Read More
Category: Microprocessors
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 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
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
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:
4 Types of Processor Architectures
Processor architecture can be classified as one of the following four architectures:
- Accumulator-based processor architecture
- Register-based processor architecture
- Stack-based processor architecture
- Pipeline processor architecture
Accumulator-Based Processor Architecture
In the accumulator-based processor architecture, illustrated above, instructions … Read More
Basic Architecture of a Microprocessor
The microprocessor is typically referred to as the central processing unit (CPU). It is the part of the processor system which processes the data, fetching instructions from memory, decoding them and executing them. The internal structure (architecture) – depends on … Read More
How Special Function Registers (SFRs) are Mapped into Memory Space
There are two basic primary architectures used for mapping special function registers into memory space. In the first type of arrangement, I/O space and memory space are separated as illustrated in Figure 1.0. The I/O devices have a separate address … Read More
Basic Features of a Microprocessor-Based System
The microprocessor is the heart of a microcomputer system and can be described as a programmable device that accepts binary data from an input device; then processes the data according to the instructions stored in the memory and provides results … Read More