Tentuts-Meritox

Hello friends, in this tutorial we are going to interface LCD with 8051 microcontroller but in 4 bit mode. we already interfaced LCD with 8051 in 8 bit and also done scrolling of text in previous tutorials.

In this 8051 microcontroller tutorial we discuss JUMP and CALL instructions. In previous tutorials we learn about MOV and ADD instruction and how to use them with registers as well as memory locations. but some time you need to take decision between two state or you need to jump some of code, or may be you need to call a subroutine(function). In that case you need some special instruction which make our task very simple and

In this tutorial we will talk about Types of Memory, RAM, bit addressable RAM and how to use it. then we will cover  8051 data type and assembler directive, need of directives and their effect on program. And  how to use them in program with the help of some short program.

Register are the most important part of microcontroller so it is necessary  to understand  different type of registers of microcontroller and their work. the registers of microcontroller can be a general purpose register or a special function register ( SRF ). special function register control  special functionality of 8051 microcontroller like input/ouput port, serial port, timer, interrupt etc. here we only discus only some of them which as necessary to start writing code.

The most commonly used set of microcontrollers belong to 8051 Family. 8051 Microcontrollers continue to remain a preferred choice for a vast community of hobbyists and professionals. Through 8051, the world became witness to the most revolutionary set of microcontrollers.