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
Q11: the signals provided by ADC are
A)SOC
B)EOC
C)ALE
D)all of
Q12: Flash ADC consist of….converters
A)2^?
B)2^? -1
C)2^? +1
D)none of
Q13: 8253/54 has ----independent timers/counters
A)1
B)2
C)3
D)4
Q14: 8253/54 timers can be programmed in---modes
A)1
B)3
C)6
D)5
Q15: in mode 0 of 8253/54 ----disables counting
A)gate=1
B)gate=0
C)wr#=1
D)wr#=0
Q17: for mode 3 of 8253/54, if the
Q18: EOC means
A)End of Conversion
B)Enable output conversion
C)error of
Q19: ADC 0808 is ----- pin IC
A)40
B)20
C)24
D)28
Q20: ADC 0808 operates on single ---- power
Q21: 8255 has -------- i/o pins
A)28
B)26
C)24
D)22
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