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problem 1: Describe the functions of ALE and IO/M signals of the microprocessor 8085.

problem 2: List all the sequence of events which takes place when the 8085 MPU reads from the memory.

problem 3: If 8085 adds 87H and 79H, specify the contents of the accumulator and the status of S, Z, and CY flags.

problem 4: If the clock frequency is 5 MHz, how much time is needed to execute an instruction of 18 T-states?

problem 5: Describe the programming model of 8085 µP with the help of appropriate diagram.

problem 6: Draw and describe the timing diagram for the opcode fetch operation.

problem 7: Describe various kinds of addressing modes of microprocessor 8085.

problem 8: Describe why the number of output ports in the peripheral-mapped Input-Output is restricted to 256 ports.

problem 9: In the peripheral-mapped Input-Output, can an input and an output port have the similar port address? Describe.

problem 10: What are the control signals essential in the memory-mapped I/O?

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M97196

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