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How is 8255 (Programmable Peripheral Interface) configured if its control register contains 9B h.
Ans.
Programmable Peripheral Interface
Command Byte B (sets or resets any bits in port C)
BH => 1001 1011 =>
6b5=00-> Mode0
4=0-> Port A as input
3=1-> Port C as input (PC7-PC4)
2=0-> Mode 0
1=1-> Port B as input
0=1-> Port C as input (PC3-PC0).
Address Bus The address bus is the group of 16 lines. It is used to carry the address of memory location and addresses of input and output ports as shown. It is a unid
pole
Explain current divider rule Current flow through at every resistor that connected by parallel can be find by using current divider rules (CDR).
what is resolution
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