Microprocessor

Intel 8086 Architecture & Programming Features of 8086 Microprocessor 1) 8086 has 16-bit ALU; this means 16-bit add up atomic number 18 directly neat by 8086. 2) It has 16-bit selective information bus, so it sens read entropy or write info to retentivity or I/O ports either 16 bits or 8 bits at a time. 3) It has 20 propagation point lines, so it deal dole out up to 220 i.e. 1048576 = 1Mbytes of memory (words i.e. 16 bit meter ar stored in resultant memorylocations). Due to the 1Mbytes memory surface concurrent execution is do feasible as easily as several(prenominal) multiprogramming features make water been incorporated in 8086 design. Y.H.Dandawate 2 3/9/2006 Features Continued 4) 8086 includes few features, which enhance multiprocessing readiness (it can be apply with math coprocessors same(p) 8087, I/O processor 8089 etc. 5) Operates on +5v supply and single sit (single line) clock frequency.(Clock is generated by secern peripheral chip 8284). 6) 8086 comes with consort versions. 8086 runs at 5 MHz, 8086-2 runs at 8 MHz, 8086-1 runs at 10 MHz. 7) It comes in 40-pin configuration with HMOS technology having around 20,000 transistors in its circuitry. 3/9/2006 Y.H.Dandawate 3 Features Continued 8) It has multiplexed address and data bus manage 8085 due to which the pin look at is reduced considerably. 9) Higher Throughput (Speed) (This is achieved by a idea call outed pipelining).

present 8086 is no longer used. unless the concept of its principles and structures is very useful for instinct other ripe Intel microprocessors. 3/9/2006 Y.H.Dandawate 4 Pin diagram of 8086 3/9/2006 Y.H.Dandawate 5  indispensable Architecture of 8086 Architecture of 8086 (contd..) get the next centering magic spell current instruction is at a lower place execution is called pipelining. What happens to stand up when jump or call instruction is executed ? When 8086 is reset the contents of IP argon 0000 H and contents of CS are FFFF H. Other registers are cleared to 0000 h. 3/9/2006 Y.H.Dandawate 7...If you want to get a full essay, order it on our website: Ordercustompaper.com

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