Microprocessor and Microcontroller Multiple Choice Questions and Answers

41. The ___________ is required to synchronize the internal operands in the processor CLK Signal

1. UR Signal
2. Vcc
3. AIE
4. Ground

42. The pin of minimum mode AD0-AD15 has ____________ address

1. 16 bit
2. 20 bit
3. 32 bit
4. 4 bit

43. The pin of minimum mode AD0- AD15 has _________ data bus

1. 4 bit
2. 20 bit
3. 16 bit
4. 32 bit

44. The address bits are sent out on lines through __________

1. A16-19
2. A0-17
3. D0-D17
4. C0-C17

45. ________ is used to write into memory

1. RD
2. WR
3. RD / WR
4. CLK

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