Microprocessor : Assignment 2

Microprocessor (PCEC4301), 5th Sem. EIE Assignment -2

Short Question Type:

1 What is the use of ALE pin?

2 Draw the memory organization of the 8086.

3 Draw the memory organization of the 8088.[BPUT,08]

4 Why the BHE# is not used the 8088.

5 What is the difference between the 8086 and 8088?[BPUT,08]

6 Enumerate the S2#, S1# and S0# pins.

7 What is stored at address FFFF0 and what is so important about this addresses?[BPUT,07]

8 Enumerate the status signal S3 to S7.

9 What are the predefined interrupt present in the 8086?[BPUT,08]

10 Why the Bus-controller 8288 used in the Max mode configuration of the 8086?

11 In 8086 microprocessor explain the operation of the following pins: (a) DT/R# (b) RESET (c) LOCK# (d) TEST# (e) DEN#

12 Enumerate the interrupt priority model of 8086.

13 Explain the WAIT FOR TEST state related to 8086.

14 Explain the HALT state related to 8086.

15 Explain briefly the DMA operation in minimum mode.

16 Identifies the signal lines of the 8086 that are different for the minimum mode and maximum mode interface.

17 If an 8086 running at 5MHz performs a write bus cycle with one wait state, what is the duration of the bus cycle?

Long Question Type:

1 Explain the demultiplexing of the buses of 8086 microprocessor.[BPUT,06]

2 Explain READ & WRITE cycle of 8086 microprocessor.[BPUT,06]

3 Starting with the lowest priority to the highest priority, list the interrupt groups in 8086 microprocessor. What are the two elements make up an interrupt vector?[BPUT,08]

4 Draw the basic minimum mode configuration using the 8086 without memory or I/O interfacing and list the functions performed by each chip.[BPUT,09]

5 Draw and explain the interfacing circuit for 8284 and 8086.

6 Write short notes on 8286 and 8282.

7 Explain the 8288 bus-controller.

8 Draw the 8086 system configuration in minimum mode.

9 Draw the 8086 system configuration in maximum mode.

10 Design a memory system of 8K of ROM and 8K of RAM using the 8086.