Microprocessor 80186
Posted by Harisinh | Posted in | Posted on 3:30 AM
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By 1982 Intel came up with 80186 and 80286, two products compatible with the 8086 and 8088. The 80186, designed by a team under the leadership of Dave Stamm, integrated onto the CPU a number of functions previously implemented in peripheral chips, producing higher reliability and faster operations speeds at less cost. It had a prefetch queue of 6 instructions.
It is suitable for high volume applications such as computer workstations, word processor and personal computers. When compared with the previous microprocessors on chip, clock oscillator, interrupt controller, two DMA channels (with all support), chip select logic with operating modes (iRMX186 for master mode and Non iRMX186 for slave mode this is similar to min and max modes in 8086), and three timers. Moreover there were ten extra instructions added to this microprocessor which are, PUSHA and POPA (to push and pop all the registers), IMUL destination, source, #immediate (an instruction of this type didn’t exist in the previous µp), SHIFT / ROTATE destination register, #immediate (this instruction could shift or rotate a register contents given number of times), INS / OUTS (for input and output of a string, ex- INS DS:DI and OUTS DS DS:SI), other three instructions were required for operating system (a concept which became very prominent and still is from the starting days of microprocessors) ENTER, LEAVE and BOUND.
It is made up of 134,000 MOS transistor to form 16-bit microprocessors with a 16-bit data bus, 20-bit address bus (could address only 1M byte of memory) and could work at clock rates of 4 and 6 MHz. This processor is called the first generation of microprocessors.
Microprocessor 80186.
By 1982 Intel came up with 80186 and 80286, two products compatible with the 8086 and 8088. The 80186, designed by a team under the leadership of Dave Stamm, integrated onto the CPU a number of functions previously implemented in peripheral chips, producing higher reliability and faster operations speeds at less cost. It had a prefetch queue of 6 instructions.
It is suitable for high volume applications such as computer workstations, word processor and personal computers. When compared with the previous microprocessors on chip, clock oscillator, interrupt controller, two DMA channels (with all support), chip select logic with operating modes (iRMX186 for master mode and Non iRMX186 for slave mode this is similar to min and max modes in 8086), and three timers. Moreover there were ten extra instructions added to this microprocessor which are, PUSHA and POPA (to push and pop all the registers), IMUL destination, source, #immediate (an instruction of this type didn’t exist in the previous µp), SHIFT / ROTATE destination register, #immediate (this instruction could shift or rotate a register contents given number of times), INS / OUTS (for input and output of a string, ex- INS DS:DI and OUTS DS DS:SI), other three instructions were required for operating system (a concept which became very prominent and still is from the starting days of microprocessors) ENTER, LEAVE and BOUND.
It is made up of 134,000 MOS transistor to form 16-bit microprocessors with a 16-bit data bus, 20-bit address bus (could address only 1M byte of memory) and could work at clock rates of 4 and 6 MHz. This processor is called the first generation of microprocessors.
Microprocessor 80186.
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