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8085 Microprocessor Architecture



Registers – hold temporary data.
  
Instruction register (IR) holds the currently executing instruction.

Instruction Decoder (ID) decodes the instruction. Once decoded, the instruction controls the remainder of the MPU, memory and IO through the timing and control block.

Temporary register - holds information from the memory or register array. An input of the ALU.

Increment/Decrements address latch – It adds or subtracts one from any of other registers in register array.

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