REGISTER SET OF 8086 MICROPROCESSOR

Registers: Most of the registers contain data/instruction offsets within 64 KB memory segment. There are four different 64 KB segments for instructions, stack, data and extra data. To specify where in 1 MB of processor memory these 4 segments are located the 8086 microprocessor uses four segment registers:  Code segment (CS) is a 16-bit register containing...

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Posted in 8086 microprocessor, Code segmentCode segment, REGISTER SET OF 8086

Architecture of 8255 programmable peripheral device.

The Intel 8255A is a general purpose programmable I/O device which is designed for use with all Intel and most other microprocessors.It provides 24 I/O pins which may be individually programmed in 2 groups of 1 and used in 3 major modes of operation.The 8255 is a 40 pin integrated circuit (IC), designed The 8255 is a 40 pin It designed by Intel for the 8080 microprocessor Two...

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Posted in 8255 microprocessor, 8255 programmable peripheral device, Architecture of 8255, Architecture of 8255 programmable peripheral device