What is 3 byte instruction in microprocessor vs microcontroller

The Intel MCS-51 (commonly termed 8051) is a single chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems.The architect of the instruction set of the Intel MCS-51 was John H. Wharton. Intel's original versions were popular in the 1980s and early 1990s and enhanced binary compatible derivatives remain popular today. What is I/O? I /O is Input/Output. It can be: · A number of digital bits formed into a number of digital inputs or outputs called a port usually eight bits wide referred to as a BYTE wide port · A serial line from/to the microprocessor (Transmit or TX) and a serial line to the microprocessor (Receive or RX) Microcontroller Instruction Set For interrupt response time information, refer to the hardware description chapter. Note: 1. Operations on SFR byte address 208 or bit addresses 209-215 (that is, the PSW or bits in the PSW) also affect flag settings. Instructions that Affect Flag Settings(1) Instruction Flag Instruction Flag COV AC C OV AC Hopefully this gives you a better idea what a microcontroller is, as well as some insight into the most important parts of a microcontroller. If you want to learn more about popular electronic components, you can check some of these articles out: Know the Difference Between an Inverter, Converter, Transformer and Rectifier. Differences mprocessor and mcontroller Microprocessor is a single chip CPU, microcontroller contains, a CPU and much of the remaining circuitry of a complete microcomputer system in a single chip. Microcontroller includes RAM, ROM, serial and parallel interface, timer, interrupt schedule circuitry (in addition to CPU) in a single chip. n Intel released the 8086, a 16-bit microprocessor, in 1978 n Motorola followed with the MC68000 as their 16-bit processor ? The 16-bit processor works with 16 bit words, rather than 8 bit words ? Instructions are executed faster ? Provide single instructions for more complex instructions such as multiply and divide Microprocessor vs Microcontroller There has been a great misunderstanding in difference between Microprocessor and Microcontroller since both the IC are designed for Real life use. The Microprocessor and Microcontroller chips do share many common features although they have very important differences. Microprocessor and Microcontroller As shown in picture above this is a 2 byte instruction which requires 1 cycle to complete. Program counter will increment by 2 and stand in 0204. The opcode for instruction MOV A, address is E5H. When the instruction at 0202 is executed (E5H), accumulator What is a Microprocessor ? A microprocessor is an integrated circuit (IC) which incorporates core functions of a computer's central processing unit (CPU). It is a programmable multipurpose silicon chip, clock driven, register based, accepts binary data as input and provides output after processing it as per the instructions stored in the memory. The Zilog Z80 has long been a popular microprocessor in embedded systems and microcontroller cores, where it remains in widespread use today. [3] [66] Applications of the Z80 include uses in consumer electronics , industrial products, and electronic musical instruments. Both have the same effect; however, the former is a 1-byte instruction, whereas the latter is a 2-byte instruction. In the latter case, the sec