Multiple Choice
8253/54 has c----command that allows the user to check the count value programmed mode and current status of the counter
A) write back
B) write ahead
C) read ahead
D) read back
Correct Answer:
Verified
Correct Answer:
Verified
Q12: the signals provided by ADC are<br>A)SOC<br>B)EOC<br>C)ALE<br>D)all of
Q13: Transmission through telephone lines is an example
Q14: Asynchronous serial communication involves<br>A)start bit<br>B)stop bits<br>C)character data<br>D)all
Q15: 8255 has three ----parrallel port<br>A)8bit<br>B)16bit<br>C)32bit<br>D)64bit
Q16: Flash ADC consist of….converters<br>A)2^?<br>B)2^? -1<br>C)2^? +1<br>D)none of
Q18: In 8255 ,BSR means -----<br>A)bit set/reset<br>B)byteset/reset<br>C)binary set/reset<br>D)none
Q19: to configure 8255 with port A output,Port
Q20: for i/o of 8255,if -----, the word
Q21: 8253/54 timers can be programmed in---modes<br>A)1<br>B)3<br>C)6<br>D)5
Q22: walkie-talkie is an example of …..serial communication<br>A)Simplex<br>B)Half