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Microprocessor and Interfacing Technique
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8255 has ----i/o modes
Q.
8255 has ----i/o modes
A.
2
B.
3
C.
4
D.
8
Answer» B. 3
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8255 has three ----parrallel port
8255 has -------- i/o pins
8255 has three ----parallel ports
for i/o of 8255,if -----, the word is taken as a bit set/rest word
on activation of ----, 8255 loads data from the input port lines into the input buffer of that port
to configure 8255 with port A output,Port B input port C lower output and port C upper input
In 8255 ,BSR means -----
For i/o mode of 8255,if -----,the word is taken as a mode definition word
For i/o mode of 8255 ,if -----, the word is taken as a bit set/reset word
On activation of --------,8255 loads data from the input port lines into the input buffer of that port