8255 has three ----parallel ports
A) 8 bit
B) 16 bit
C) 32 bit
D) 64 bit
Correct Answer:
Verified
Q15: in mode 0 of 8253/54 ----disables counting
A)gate=1
B)gate=0
C)wr#=1
D)wr#=0
Q16: 8253/54 has c----command that allows the user
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
Q23: In 8255 ,BSR means -----
A)bit set/reset
B)byteset/reset
C)binary set/reset
D)none
Q24: BSR mode is used to set or
Q25: 8255 has ----i/o modes
A)2
B)3
C)4
D)8
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