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Architecture of 8086

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Architecture of 8086

  1. 1. ARCHITECTURE OF 8086
  2. 2. ABOUT MICROPROCESSOR
  3. 3. The complete architecture of 8086 is classified as- •Bus Interface Unit ( BIU) – It performs operations as •Instruction Fetching. •Reading and Writing operands for memory. •Calculating Address of Memory Operand. •Address Relocation. •Bus control. •Interface with peripherals and External devices via BUS. •Instruction Byte Queue. ARCHITECTURE of 8086
  4. 4. •the register set of 8086 except segment registers and IF. •a 16-bit ALU to perform arithmetic & logic operation. •16-bit flag register reflects the results of execution by the ALU. •the decoding units decodes the op-code bytes issued from the instruction byte queue. •the timing and control unit generates the necessary control signals to execute the instruction op-code received from the queue. Execution Unit- It performs operations as- ARCHITECTURE of 8086
  5. 5. 8086 ARCHITECTURE BIU EU

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