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Code No: 56012 Set No. 1JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. II Sem., II Mid-Term Examinations, April 2013MICRO PROCESSORS AND MICRO CONTROLLERS

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 10.

I Choose the correct alternative:

1. The format of asynchronous serial data transfer uses [ ]

a) Single synchronous character b) Two Synchronous characters

c) Hunt mode d) Start/ Stop bits

2. The Internal & External data bus width of 8051 is ____ & ____ [ ]

a) 8bits, 16 bits b) 8bits, 8bits c) 16bits, 16bits d) 8bits, 12bits.

3. After reset the Stack Pointer of 8051 points to memory location [ ]

a) 00H b) 1FH c) 07H d) FFH

4. The Highest priority is for the ________ interrupt in 8051 [ ]

a) Int0 b) Int1 c) T0 d) T1

5. Which of the following Instructions do not affect any of the PSW Flags? [ ]a) Data Transfer Instructions b) Arithmetic and Logical Instructions

c) Boolean Bit manipulations d) Program Branching Instructions

6. Mega AVR Microcontroller has a maximum operating speed of [ ]a) 1.0 MIPS/MHz b) 2.0 MIPS/MHz c) 3.0 MIPS/MHz d) 4.0 MIPS/MHz

7. The bit addressible RAM area of 8051 is betwen________ and __________ [ ]

a) 10h to 1fh b) 20h to 2fh c) 30h to 3fh d) 40f to 4fh

8. The REN bit of SCON register in 8051 is __________ to enable reception [ ]

a) 0 b) 1 c) Undefined d) Its dont care

9. To run in TIMER mode using 8-bit operation, the TMOD register is initialised as follows [ ]a) Mov TMOD, #00010001b b) Mov TCON, #00010001b

c) Mov TMOD, #00100000b d) Mov TCON, #0010000b

10. To obtain a baud rate of 1200 at the operating frequency of 11.0592 Mhz, the timer TH1 must be

preloaded with a value of ____ [ ]

a) FDH b) FAH c) DOH d) AOH

Cont2

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Code No: 56012 :2: Set No. 1

II Fill in the blanks

11. LCALL Instruction is ___________________ byte Instruction.

12. ATmega16 has _________________ of EEPROM.

13. The SP is _________________ bit register.

14. The equivalent instruction for CLR P0.7 is __________________.

15. A 8-bit tiny AVR microcontroller has flash memory of _________________.

16. An alternate function of port pin P3.4 in the 8051 is __________________.

17. The IEEE 488 bus is also called as _______________ or _________________.

18. The number of I/O ports for a 8051 microntroller are ________________and total pins available asI/Oare_______.

19. The Instruction mov a,@r0 is ______________ addressing mode.

20. The size of opcode of the instruction ORG 1000H is ______________ bytes.

-oOo-

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Code No: 56012 Set No. 2JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. II Sem., II Mid-Term Examinations, April 2013MICRO PROCESSORS AND MICRO CONTROLLERS

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 10.

I Choose the correct alternative:

1. The Highest priority is for the ________ interrupt in 8051 [ ]

a) Int0 b) Int1 c) T0 d) T1

2. Which of the following Instructions do not affect any of the PSW Flags? [ ]a) Data Transfer Instructions b) Arithmetic and Logical Instructions

c) Boolean Bit manipulations d) Program Branching Instructions

3. Mega AVR Microcontroller has a maximum operating speed of [ ]

a) 1.0 MIPS/MHz b) 2.0 MIPS/MHz c) 3.0 MIPS/MHz d) 4.0 MIPS/MHz

4. The bit addressible RAM area of 8051 is betwen________ and __________ [ ]

a) 10h to 1fh b) 20h to 2fh c) 30h to 3fh d) 40f to 4fh

5. The REN bit of SCON register in 8051 is __________ to enable reception [ ]a) 0 b) 1 c) Undefined d) Its dont care

6. To run in TIMER mode using 8-bit operation, the TMOD register is initialised as follows [ ]

a) Mov TMOD, #00010001b b) Mov TCON, #00010001bc) Mov TMOD, #00100000b d) Mov TCON, #0010000b

7. To obtain a baud rate of 1200 at the operating frequency of 11.0592 Mhz, the timer TH1 must be

preloaded with a value of ____ [ ]

a) FDH b) FAH c) DOH d) AOH

8. The format of asynchronous serial data transfer uses [ ]

a) Single synchronous character b) Two Synchronous characters

c) Hunt mode d) Start/ Stop bits

9. The Internal & External data bus width of 8051 is ____ & ____ [ ]

a) 8bits, 16 bits b) 8bits, 8bits c) 16bits, 16bits d) 8bits, 12bits.

10. After reset the Stack Pointer of 8051 points to memory location [ ]

a) 00H b) 1FH c) 07H d) FFH

Cont2

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Code No: 56012 :2: Set No. 2

II Fill in the blanks

11. The equivalent instruction for CLR P0.7 is __________________.

12. A 8-bit tiny AVR microcontroller has flash memory of _________________.

13. An alternate function of port pin P3.4 in the 8051 is __________________.

14. The IEEE 488 bus is also called as _______________ or _________________.

15. The number of I/O ports for a 8051 microntroller are ________________and total pins available as

I/Oare_______.

16. The Instruction mov a,@r0 is ______________ addressing mode.

17. The size of opcode of the instruction ORG 1000H is ______________ bytes.

18. LCALL Instruction is ___________________ byte Instruction.

19. ATmega16 has _________________ of EEPROM.

20. The SP is _________________ bit register.

-oOo-

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Code No: 56012 Set No. 3JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. II Sem., II Mid-Term Examinations, April 2013MICRO PROCESSORS AND MICRO CONTROLLERS

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 10.

I Choose the correct alternative:

1. Mega AVR Microcontroller has a maximum operating speed of [ ]

a) 1.0 MIPS/MHz b) 2.0 MIPS/MHz c) 3.0 MIPS/MHz d) 4.0 MIPS/MHz

2. The bit addressible RAM area of 8051 is betwen________ and __________ [ ]a) 10h to 1fh b) 20h to 2fh c) 30h to 3fh d) 40f to 4fh

3. The REN bit of SCON register in 8051 is __________ to enable reception [ ]a) 0 b) 1 c) Undefined d) Its dont care

4. To run in TIMER mode using 8-bit operation, the TMOD register is initialised as follows [ ]a) Mov TMOD, #00010001b b) Mov TCON, #00010001b

c) Mov TMOD, #00100000b d) Mov TCON, #0010000b

5. To obtain a baud rate of 1200 at the operating frequency of 11.0592 Mhz, the timer TH1 must bepreloaded with a value of ____ [ ]

a) FDH b) FAH c) DOH d) AOH

6.

The format of asynchronous serial data transfer uses [ ]a) Single synchronous character b) Two Synchronous characters

c) Hunt mode d) Start/ Stop bits

7. The Internal & External data bus width of 8051 is ____ & ____ [ ]

a) 8bits, 16 bits b) 8bits, 8bits c) 16bits, 16bits d) 8bits, 12bits.

8. After reset the Stack Pointer of 8051 points to memory location [ ]

a) 00H b) 1FH c) 07H d) FFH

9. The Highest priority is for the ________ interrupt in 8051 [ ]

a) Int0 b) Int1 c) T0 d) T1

10. Which of the following Instructions do not affect any of the PSW Flags? [ ]

a) Data Transfer Instructions b) Arithmetic and Logical Instructions

c) Boolean Bit manipulations d) Program Branching Instructions

Cont2

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Code No: 56012 :2: Set No. 3

II Fill in the blanks

11. An alternate function of port pin P3.4 in the 8051 is __________________.

12. The IEEE 488 bus is also called as _______________ or _________________.

13. The number of I/O ports for a 8051 microntroller are ________________and total pins available asI/Oare_______.

14. The Instruction mov a,@r0 is ______________ addressing mode.

15. The size of opcode of the instruction ORG 1000H is ______________ bytes.

16. LCALL Instruction is ___________________ byte Instruction.

17. ATmega16 has _________________ of EEPROM.

18. The SP is _________________ bit register.

19. The equivalent instruction for CLR P0.7 is __________________.

20. A 8-bit tiny AVR microcontroller has flash memory of _________________.

-oOo-

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Code No: 56012 Set No. 4JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. II Sem., II Mid-Term Examinations, April 2013MICRO PROCESSORS AND MICRO CONTROLLERS

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 10.

I Choose the correct alternative:

1. The REN bit of SCON register in 8051 is __________ to enable reception [ ]

a) 0 b) 1 c) Undefined d) Its dont care

2. To run in TIMER mode using 8-bit operation, the TMOD register is initialised as follows [ ]a) Mov TMOD, #00010001b b) Mov TCON, #00010001b

c) Mov TMOD, #00100000b d) Mov TCON, #0010000b

3. To obtain a baud rate of 1200 at the operating frequency of 11.0592 Mhz, the timer TH1 must be

preloaded with a value of ____ [ ]

a) FDH b) FAH c) DOH d) AOH

4. The format of asynchronous serial data transfer uses [ ]

a) Single synchronous character b) Two Synchronous characters

c) Hunt mode d) Start/ Stop bits

5. The Internal & External data bus width of 8051 is ____ & ____ [ ]

a) 8bits, 16 bits b) 8bits, 8bits c) 16bits, 16bits d) 8bits, 12bits.

6. After reset the Stack Pointer of 8051 points to memory location [ ]

a) 00H b) 1FH c) 07H d) FFH

7. The Highest priority is for the ________ interrupt in 8051 [ ]

a) Int0 b) Int1 c) T0 d) T1

8. Which of the following Instructions do not affect any of the PSW Flags? [ ]

a) Data Transfer Instructions b) Arithmetic and Logical Instructions

c) Boolean Bit manipulations d) Program Branching Instructions

9. Mega AVR Microcontroller has a maximum operating speed of [ ]

a) 1.0 MIPS/MHz b) 2.0 MIPS/MHz c) 3.0 MIPS/MHz d) 4.0 MIPS/MHz

10. The bit addressible RAM area of 8051 is betwen________ and __________ [ ]

a) 10h to 1fh b) 20h to 2fh c) 30h to 3fh d) 40f to 4fh

Cont2

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Code No: 56012 :2: Set No. 4

II Fill in the blanks

11. The number of I/O ports for a 8051 microntroller are ________________and total pins available as

I/Oare_______.

12. The Instruction mov a,@r0 is ______________ addressing mode.

13. The size of opcode of the instruction ORG 1000H is ______________ bytes.

14. LCALL Instruction is ___________________ byte Instruction.

15. ATmega16 has _________________ of EEPROM.

16. The SP is _________________ bit register.

17. The equivalent instruction for CLR P0.7 is __________________.

18. A 8-bit tiny AVR microcontroller has flash memory of _________________.

19. An alternate function of port pin P3.4 in the 8051 is __________________.

20. The IEEE 488 bus is also called as _______________ or _________________.

-oOo-

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