Microprocessor and Microcontroller Questions and Answers | Online Quiz for Practice

46. The functions of Pins from 24 to 31 depend on the mode in which _______ is operating

1. 8085
2. 8086
3. 80835
4. 80845

47. The RD, WR, M/IO is the heart of control for a __________ mode

1. minimum
2. maximum
3. compatibility mode
4. control mode

48. In a minimum mode there is a ___________ on the system bus

1. single
2. double
3. multiple
4. triple

49. If MN/MX is low the 8086 operates in __________ mode

1. Minimum
2. Maximum
3. both (A) and (B)
4. medium

50. In max mode, control bus signal So,S1 and S2 are sent out in ____________ form

1. decoded
2. encoded
3. shared
4. unshared

51. The ___ bus controller device decodes the signals to produce the control bus signal

1. internal
2. data
3. external
4. address

52. A _____ Instruction at the end of interrupt service program takes the execution back to the interrupted program

1. forward
2. return
3. data
4. line

53. The main concerns of the ___________ are to define a flexible set of commands

1. memory interface
2. peripheral interface
3. both (A) and (B)
4. control interface

54. Primary function of memory interfacing is that the _________ should be able to read from and write into register

1. multiprocessor
2. microprocessor
3. dual Processor
4. coprocessor

55. To perform any operations, the Mp should identify the __________

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

56. The Microprocessor places __________ address on the address bus

1. 4 bit
2. 8 bit
3. 16 bit
4. 32 bit

57. The Microprocessor places 16 bit address on the add lines from that address by _____ register should be selected

1. address
2. one
3. two
4. three

58. The ________of the memory chip will identify and select the register for the EPROM

1. internal decoder
2. external decoder
3. address decoder
4. data decoder

59. Microprocessor provides signal like ____ to indicate the read operatio

1. LOW
2. MCMW
3. MCMR
4. MCMWR

60. To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the _______ chip.

1. single
2. memory
3. multiple
4. triple