Wednesday, August 19, 2009

Micro Processor & InterfacinG StudY MateriaL

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VivA QuestionS iN MP i LaB


MicroProcessor AnD InterfacinG -



MicroProcessor:-
def:-A MicroProcessor is a multipurpose,programmable,clock-driven,register-based electronic device       that reads binary instructions from a storage device called memory,accepts binary data as input and processes the data according to those instruction,and provides results as output.


MP Unit5

Interrupts



Interrupts


Def:- An interrupt operation suspends execution of a program so that the system can take special action.The interrupt routine executes and normally returns control to the interrupted procedure, which then resumes execution.BIOS handles Int 00H-1FH, whereas DOS handles INT 20H-3FH.



Viva questions for MicroProcessor AnD InterfacinG lab



VivA QuestionS for MP I LaB


1) What is MicroProcessor?
2) What are the different types of Addressing Modes?
3) What are the General Data Registers & their uses?
4) What are Segment Registers & their uses?
5) What are Flag Registers?
6) What does the 8086 Architecture contain?
7) What are Data Copy/Transfer Instructions?
8) What are Machine Control Instructions?
9) What are Flag Manipulation Instructions?
10) What are String Instructions?
11) What are different parts for 8086 architecture?
12) What are Interrupts?
13) What is an Opcode?
14) What is an Operand?
15) Explain the difference between a JMP and CALL instruction?
16) What is meant by Polling?
17) What is meant by Interrupt?
18) What is an Instruction?
19) What is Microcontroller and Microcomputer?
20) What is Assembler?
21) Define Variable?
22) Explain Dup?
23) Define Pipelining?
24) What is the use of HLDA?
25) Explain about "LEA"?
26) Difference between "Shift" and "Rotate".
27) Explain about .MODEL SMALL?
28) Difference between JMP and JNC?
29) List the String Manipulation Commands?
30) What are the 4 Segments?
31) What is the main use of ready pin?
32) Explain about Direction Flag?


More Questions are provided below. Answers will be posted soon.


VivA QuestionS for InternalS & Es MP LaB

1) What is MicroProcessor?
2) What is Assembly?                                                              
3) What is Assembly Language?                                               
4) What is Assembly Language Program?                                           
5) What is Register?                                                                 
6) What is Data segment Register?                                                     
7) What is Load Effective Address?
8) What is Model in the program?
9) What is Stack in the program?                                                        
10) What is DB in the program?
11) What is Dup (?) in the program?
12) What is @data in the program?
13) What is INT 03 in the program?
14) What is g in the output of the program?
15) What is d in the output of the program?
16) What is DW in the program?
17) What is DD in the program?
18) What is CX register in the program of the loops?
19) What is CLC in the program?
20) What is INC?
21) What is ADC?
22) What is SBB?
23) What is CMP?
24) What is JC?
25) What is XCHG?
26) What is DEC?
27) What is JNZ?
28) What is XOR?
29) What is the use of XOR?
30) What is RCR?
31) What is JNC?
32) What is IDIV?
33) What is RCL?
34) What is AAA?
35) What is AAS?
36) What is DAA?
37) What is DAS?
38) What is DEC?
39) What is CMPSB?
40) What is CMPS?
41) What is INT 21 in the program?




OtheR QuestionS

1) How many bit 8086 microprocessor is?
2) What is the size of data bus of 8086?
3) What is the size of address bus of 8086?
4) What is the max memory addressing capacity of 8086?
5) Which are the basic parts of 8086?
6) What are the functions of BIU?
7) What are the functions of EU?
8) How many pin IC 8086 is?
9) What IC 8086 is?
10) What is the size of instruction queue in 8086?
11) What is the size of instruction queue in 8088?
12) Which are the registers present in 8086?
13) What do you mean by pipelining in 8086?
14) How many 16 bit registers are available in 8086?
15) Specify addressing modes for any instruction?
16) What do you mean by assembler directives?
17) What .model small stands for?
18) What is the supply requirement of 8086?
19) What is the relation between 8086 processor frequency & crystal frequency?
20) Functions of Accumulator or AX register?
21) Functions of BX register?
22) Functions of CX register?
23) Functions of DX register?
24) How Physical address is generated?
25) Which are pointers present in this 8086?
26) Which is by default pointer for CS/ES?
27) How many segments present in it?
28) What is the size of each segment?
29) Basic difference between 8085 and 8086?
30) Which operations are not available in 8085?
31) What are the flags in 8086?
32) What are the various interrupts in 8086?
33) What is meant by Mask able interrupts?
34) What is Non-Mask able interrupts?
35) Which interrupts are generally used for critical events?
36) Give examples for Mask able interrupts?
37) Give example for Non-Mask able interrupts?
38) What is the Maximum clock frequency in 8086?
39) What are the various segments registers in 8086?
40) Which Stack is used in 8086?
41) What are the address lines for the software interrupts?
42) What are SIM and RIM instructions?
43) Which is the tool used to connect the user and the computer?
44) What is the position of the Stack Pointer after the PUSH instruction?
45) What is the position of the Stack Pointer after the POP instruction?
46) Logic calculations are done in which type of registers?
47) What are the different functional units in 8086?
48) Give examples for Micro controller?
49) What is meant by cross-compiler?
50) What are the address lines for the hardware interrupts?
51) Which Segment is used to store interrupt and subroutine return address registers?
52) Which Flags can be set or reset by the programmer and also used to control the operation of the processor?
53) What does EU do?
54) Which microprocessor accepts the program written for 8086 without any changes?
55) What is the difference between 8086 and 8088?
56) What is the difference between min mode and max mode of 8086?
57) What is the difference between near and far procedure?
58) What is the difference between Macro and procedure?
59) What is the difference between instructions RET & IRET?
60) What is the difference between instructions MUL & IMUL?
61) What is the difference between instructions DIV & IDIV?
62) What is difference between shifts and rotate instructions?
63) Which are strings related instructions?
64) Which are addressing modes and their examples in 8086?
65) What does u mean by directives?
66) What does u mean by Prefix?
67) What .model small means?
68) Difference between small, medium, tiny, huge?
69) What is dd, dw, db?
70) Interrupts in 8086 and there function.
71) What is the function of INT 01h of INT 21h?
72) What is the function of INT 02h of INT 21h?
73) What is the function of INT 09h of INT 21h?
74) What is the function of INT 0Ah of INT 21h?
75) What is the function of INT 4ch of INT 21h?
76) What is the reset address of 8086?
77) What is the size of flag register in 8086? Explain all.
78) What is the difference between INT 08H and INT 01H functions of INT 21H?
79) Which is faster- Reading word size data whose starting address is at even or at odd address of memory in 8086?
80) Which are the default segment bases: offset pairs?
81) Can we use SP as offset address holder with CS?
82) Which are the bases registers in 8086?
83) Which is the index registers in 8086?
84) What do you mean by segment override prefix?
85) Whether micro reduces memory requirements?
86) What do you mean by macro?
87) What is diff between macro and procedure?
88) Types of procedure?
89) What TASM is?
90) What TLINK is?
91) What TD is?
92) What does u mean by assembler?
93) What does u mean by linker?
94) What does u mean by loader?
95) What does u mean by compiler?
96) What does u mean by emulator?
97) Stack related instruction?
98) .Stack 100 means?
99) What do you mean by 20 dup (0)?
100) Which flags of 8086 are not present in 8085?
101) What is the size of flag register?
102) Can you perform 32 bit operation with 8086? How?
103) Whether 8086 is compatible with Pentium processor?
104) What is 8087? How it is different from 8086?
105) While accepting no. from user why u need to subtract 30 from that?
106) While displaying no. from user why u need to add 30 to that?
107) What are ASCII codes for nos. 0 to F?
108) How does U differentiate between positive and negative numbers?
109) What is range for these numbers?
110) Which no. representation system you have used?
111) What is LEA?
112) What is @data indicates in instruction- MOV ax, @data?
113) What is maximum size of the instruction in 8086?
114) Why we indicate FF as 0FF in program?
115) What is MUL BX and DIV BX? Where result goes?
116) Where queue is present?
117) What is the advantage of using internal registers?
118) What is SI, DI and their functions?
119) Which are the pointers used in 8086 and their functions?
120) What is a type of queue in 8086?
121) What is minimum mode of 8086?
122) What is maximum mode of 8086?
123) Which are string instructions?
124) In string operations which is by default string source pointer?
125) In string operations which is by default string destination pointer?




PROGRAMS:


1) What do you mean by assembler?
2) What do you mean by linker?
3) What do you mean by debugger?
4) What do you mean by compiler?
5) What do you mean by locator?
6) What do you mean by emulator?
7) When divide overflow error occurs?
8) What .startup stands for?
9) Explain the logic of array addition program.
10) Explain the logic of finding out negative nos. from an array of signed nos.
11) Explain the logic of code conversion (BCD to hex and hex to BCD) program.
12) Explain the logic of multiplication (by successive addition and shift and add method) program.
13) Explain the logic of non overlap and overlap block transfer program
14) Explain the logic of string related programs.
15) Which assembler directives are used with near procedure?
16) Which assembler directives are used with far procedure?




80386 (microprocessor):


1) What IC 80386 is?
2) How many pin IC 80836 is?
3) 80386 is how many bit processors?
4) What is the size of instruction queue in 80386?




INTERRUPTS:


1) What do you mean by interrupt?
2) Which are the hardware and software interrupts in 8086?
3) Mention the priority of interrupts in8086.
4) What is int1, int2, int3?
5) What do you mean by NMI interrupt?
6) What do you mean by IVT in 8086?
7) What is the size of IVT?
8) Where IVT is located?
9) Which steps 8086 follows to handle any interrupt?




INTERFACING:


1) What are the types of interfacing?
2) Compare memory interfacing and IO interfacing.
3) What are the types of IO interfacing?
4) What is the difference between direct and indirect IO interfacing?
5) What is the difference between memories mapped IO and IO mapped IO interfacing?




8255 (programmable peripheral interface):


1) What IC 8255 is?
2) How many pin IC 8255 is?
3) Explain control word format of 8255.




126) What is segmentation?
127) How many bit processors does 8086?
128) How many address lines in 8086
129) How many data lines in 8086?
130) Multiplexed lines in 8086?
131) Describe flags-over flow flag, interrupt flag, direction flag and trap flag?
132) What is the role of pointers?
133) How 16 bit processor generates 20 bit addresses?
134) Instructions set of 8086?
135) Timing diagram of 8086?
136) Min/Max mode working of 8086?
137) Pin difference in min/max mode?
138) Interrupt structure in 8086?
139) How an interrupt is acknowledged?
140) How the cs : ip is working during interrupt?
141) New cs : ip during interrupt?
142) How the even odd addresses are assigned through 8086?



Interview Questions:


1.      What is a Microprocessor?
2.      Give examples for 8 / 16 / 32 bit Microprocessor?
3.      Why 8085 processor is called an 8 bit processor?
4.      What is 1st / 2nd / 3rd / 4th generation processor?
5.      Define HCMOS?
6.      What does microprocessor speed depend on?
7.      Is the address bus unidirectional?
8.      Is the data bus is Bi-directional?
9.      What is the disadvantage of microprocessor?
10.   What is the difference between microprocessor and microcontroller?
11.   What is meant by LATCH?
12.   Why does microprocessor contain ROM chips?
13.   What is the difference between primary & secondary storage device?
14.   Difference between static and dynamic RAM?
15.   What is interrupt?
16.   What is cache memory?
17.   What is called .Scratch pad of computer?
18.   Which transistor is used in each cell of EPROM?
19.   Differentiate between RAM and ROM?
20.   What is a compiler?
21.   Which processor structure is pipelined?
22.   What is flag?
23.   What is stack?
24.   Can ROM be used as stack?
25.   What is NV-RAM?








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