Multiple Choice
For i/o mode of 8255 ,if -----, the word is taken as a bit set/reset word
A) D7=1
B) D7=0
C) D0=1
D) D0=0
Correct Answer:

Verified
Correct Answer:
Verified
Q2: For i/o mode of 8255,if -----,the word
Q3: ADC 0809 IS A ----- PIN IC<br>A)40<br>B)20<br>C)24<br>D)28
Q4: Asynchronous serial communication involves transmission of<br>A)start bit<br>B)stop
Q5: To indicate end of conversion ADC 0808/0809
Q6: In ------ of 8255 ,bidirectionali/o data transfer
Q7: IBF is an active-------- output signal for
Q8: Walkie-talkie is an example of serial communication<br>A)simplex<br>B)half-duplex<br>C)full-duplex<br>D)none
Q10: Whichof the following is the fastest ADC<br>A)DUAL
Q11: Conversion time of ADC 0808 IS<br>A)100 ms<br>B)100micro
Q12: 8255 sets INTR when STB'=-----,IBF=---------,INTE=--------,for input conrol