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As a result, the 8051 Microcontroller instruction set can have up to 2 8 = 256 Instructions.īefore going into details of 8051 Microcontroller Instruction Set, read this: 8051 MICROCONTROLLER MEMORY ORGANIZATION. As a typical 8-bit processor, the 8051 Microcontroller instructions have 8-bit Opcodes. This tutorial introduces the 8051 Microcontroller Instruction Set also called as the MCS-51 Instruction Set.Īs the 8051 family of Microcontrollers are 8-bit processors, the 8051 Microcontroller Instruction Set is optimized for 8-bit control applications. Instructions written in a program tell the Microcontroller which operation to carry out.Īn Instruction Set is unique to a family of computers. Just as our sentences are made of words, a Microcontroller’s (for that matter, any computer) program is made of Instructions. The commands to the Microcontroller are known as a Microcontroller’s Instruction Set. Writing a Program for any Microcontroller consists of giving commands to the Microcontroller in a particular order in which they must be executed in order to perform a specific task. Introduction to 8051 Microcontroller Instruction Set

Boolean or Bit Manipulation Instructions.Types of Instructions in 8051 Microcontroller Instruction Set.A Brief Look at 8051 Microcontroller Instructions and Groups.Introduction to 8051 Microcontroller Instruction Set.