This information indicates which relocation register is presently being used for. On these lines the cpu sends out the address of the memory location that is to be written to or read from. Here you will be able to read the content of this class notes in 8086 microprocessor architecture as an embedded pdf. The first four registers are sometimes referred to as data registers.
A microprocessor is an integrated circuit with all the functions of a cpu however, it cannot be used stand alone since unlike a microcontroller it has no memory or peripherals 8086 does not have a ram or rom inside it. Its isr address is stored at location 1 x 4 00004h in the ivt. Eight of the registers are known as general purpose registers i. Flag register of 8086 microprocessor geeksforgeeks.
Eu contains control circuitry, instruction decoder, alu. Unlike 8085, the 8086 addresses a segmented memory. General 16bit registers the registers ax, bx, cx, and dx are the general 16bit registers. Al in this case contains the loworder byte of the word, and ah contains the. Its isr generally displays contents of all registers. Explain how 8086 microprocessor uses a single bus f or both data and address. Pdf multiple choice questions on 8086 microprocessor. Microprocessor 8086 mcqs set10 if you have any questions regarding this free computer science tutorials,short questions and answers,multiple choice questions and answersmcq sets,online testquiz,short study notes dont hesitate to contact us via facebook,or through our website. There are four segment registers such as code segment register cs, data segment register ds, extra segment register es and stack segment register ss. Pdf a notebook on microprocessor system researchgate.
In these microprocessors notes pdf, you will study internal architecture, programming model of intel microprocessors 8086 pentium and assembly language programming using an assembler. Search cloud stack structure of 8086 pdf important. The intel microprocessors 80868088, 8018680188, 80286. Microprocessor 8085, 8086, abhishek yadav, jan 1, 2008, microprocessors, 488 pages. Accumulator register consists of two 8bit registers al and ah, which can be combined together and used as a 16 bit register ax. Learn microprocessors and microcontrollers youtube. The complete 1 megabyte memory is divided into 16 logical segments. Unit1 introduction to 8086 ece department microprocessors and microcontrollers page 2 iv address bus. Generally segment register is used to store the upper 16bits of the. Students will also learn interfacing of memory and io devices with microprocessor. Register organization of 8086 intel 8086 microprocessor. The intel 8086 high performance 16bit cpu is available in three clock rates. The address bus consists of 16, 20, 24, or more parallel signal lines. An overview of 8085, architecture of 8086, microprocessor, special functions of general purpose registers, 8086 flag register and function of 8086 flags.
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