Microprocessor and Microcontroller Multiple Choice Questions and Answers

61. The remaining address line of ______ bus is decoded to generate chip select signal

1. data
2. address
3. control bus
4. both (a) and (b)

62. _______ signal is generated by combining RD and WR signals with IO/M

1. control
2. memory
3. register
4. system

63. Memory is an integral part of a _______ system

1. supercomputer
2. microcomputer
3. mini computer
4. mainframe computer

64. _____ has certain signal requirements write into and read from its registers

1. memory
2. register
3. both (a) and (b)
4. control

65. An _________ is used to fetch one address

1. internal decoder
2. external decoder
3. encoder
4. register

66. The primary function of the _____________ is to accept data from I/P devices

1. multiprocessor
2. microprocessor
3. peripherals
4. interfaces

67. ___________ signal prevent the microprocessor from reading the same data more than one

1. pipelining
2. handshaking
3. controlling
4. signaling

68. Bits in IRR interrupt are ______

1. reset
2. set
3. stop
4. start

69. __________ generate interrupt signal to microprocessor and receive acknowledge

1. priority resolver
2. control logic
3. interrupt request register
4. interrupt register

70. The _______ pin is used to select direct command word

1. A0
2. D7-D6
3. A12
4. AD7-AD6