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Embedded - Microcontrollers

PIC17LC43-08I/PQ is an 8-bit RISC microcontroller created by Microchip Technology, Inc. It is a member of the 8-bit microcontroller family. It is designed for various applications such as controlling industrial machinery, consumer electronics, and home appliances. This article will discuss the application field and working principle of PIC17LC43-08I/PQ microcontroller.

Application Field

PIC17LC43-08I/PQ microcontroller is used in a variety of devices and applications, such as electric motors, digital signal processing, and embedded systems. One example of its application is for a motor control system, where the microcontroller can monitor speed or position of a motor. It can also be used in consumer electronics, like televisions, set-top boxes, and audio-video receivers. It can be programmed to handle inputs from sensors, LCD screens, and other devices, as well as for controlling audiovisual and communication systems. This microcontroller can also be used in home automation systems, where it can control various appliances such as lights, fans, and other devices.

Working Principle

The functioning of PIC17LC43-08I/PQ microcontroller is based on the core 8-bit 8051 architecture developed by Intel in the 1980s. It is a Harvard architecture system with separate memory and address spaces for data and instructions. Its memory architecture consists of Program Memory and Data Memory, with Data Memory containing RAM, SFRs (Special Function Registers), and EEPROM. The microcontroller also includes a powerful 8-bit CPU and a set of powerful peripheral modules for accessing external devices, as well as for handling tasks such as interrupt handling, communication protocols, and digital signal processing.

The PIC17LC43-08I/PQ microcontroller includes three different types of instruction sets – the peripheral instruction set (PIS), control instruction set (CIS), and branch instruction set (BIS). The PIS instructions provide direct control over the peripheral modules, such as Serial Communication Interface (SCI) module, Timer/Counter module, and A/D Converter. The CIS instructions are used for implementing basic data-movement operations and for controlling instruction execution. The BIS instructions provide branch and loop control.

The working principle of PIC17LC43-08I/PQ microcontroller is based on a Harvard architecture and includes an accumulator as the register for performing arithmetic operations. It is a 8-bit RISC microcontroller with an instruction set composed of different instruction types such as PIS, CIS, and BIS. It has separate Data Memory and Program Memory and uses a powerful 8-bit CPU for executing instructions. It also includes a set of powerful peripheral modules for accessing external devices.

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