![]() Memory: Basically 8051 microcontroller consists of on-chip program memory i.e., ROM and on-chip data memory i.e., RAM.Ĩ051 microcontroller has 4 KB ROM with 0000H to 0FFFH as the addressable space. This simply means that it has the ability to access each single bit data either to clear, set or move etc. The processor of 8051 microcontrollers possesses a special feature by which it can process single bit or 8-bit data. Several logical operations are performed by the ALU according to the program stored in the memory. The unit performs arithmetic and logical operations on 8-bit data as it has ALU, with internal registers and program counters. As the execution of the program stored in the memory is performed by the processor. A processor is the heart of microcontroller. This unit carries out the operation on 8-bit data. ![]() Central processing unit (CPU): 8051 uses the 8-bit processor. Let us now discuss the operation of each unit present in the architecture.ġ. And every unit is embedded to execute the desired operation. The figure below represents the architectural block diagram of 8051 microcontroller:Īs we can see that several units are present in the above architecture. ![]() Let us now have a detailed idea about 8051 microcontrollers. A microcontroller holds separate memory locations for both data and program. However, microcontrollers are used where programming is to be performed on the smallest tiny space present. Microprocessors are used where huge space is present to inbuilt a large motherboard like in PCs. A microprocessor simply contains a CPU that processes the operations with the help of other peripheral units. We have already discussed microprocessors in our previous article. ![]() This single-chip manages the overall operation of the device. But a microcontroller contains all these components embedded in a single chip. A microcontroller is basically designed in such a way that all the working peripherals are embedded in a single chip with the processor.Īny programmable device holds a processor, memory, I/O ports and timer within it. A microcontroller is an integrated chip designed under Very Large Scale Integration technique that consists of a processor with other peripheral units like memory, I/O port, timer, decoder, ADC etc. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |