STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Differentiate between procedure and macro.
6 M
1 (b)
Explain difference between 80386 pipelined and non-pipelined bus cycle with neat diagram.
6 M
2 (a)
Explain the following assembler directives:
(i) Public and Extrn
(ii) .Org
(iii) : Model
(i) Public and Extrn
(ii) .Org
(iii) : Model
6 M
2 (b)
State and explain the significance of any three interrupt related signals of the 80386.
6 M
Answer any one question from Q3 and Q4
3 (a)
Draw and explain the logical address to physical address translation with paging in 80386 processor.
6 M
3 (b)
What is virtual mode ? How to switch from protected mode to virtual 86 mode.
6 M
4 (a)
Write down the steps to switch from Real Mode (RM) to Protected Mode (PM).
6 M
4 (b)
Explain the difference between 3 operating models of 80386.
6 M
Answer any one question from Q5 and Q6
5 (a)
Identify and justify addressing mode of the following 8051
Instructions:
(i) MOV @ RO, A
(ii) MOV B, 50H
(iii) DIV AB.
(i) MOV @ RO, A
(ii) MOV B, 50H
(iii) DIV AB.
6 M
5 (b)
List SFR?s used in 8051. Draw and explain SCON and TCON.
7 M
6 (a)
Explain the following instructions in 8051:
(i) MUL AB
(ii) SWAP A
(iii) MOV.DPTR, #3000H
(i) MUL AB
(ii) SWAP A
(iii) MOV.DPTR, #3000H
6 M
6 (b)
List the features of 8051 microcontroller. Draw and explain architecture of 8051.
7 M
Answer any one question from Q7 and Q8
7 (a)
How many interrupts are there in 8051? List them according to their priority. Explain the IP register structure.
7 M
7 (b)
Explain any two operating modes of timer used in 8051.
7 M
8 (a)
List and classify 8051 interrupts.
7 M
8 (b)
Draw and explain formats of SBUF and IE.
6 M
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