Statement: Write a program to generate a delay of 0.4 sec if the crystal frequency is 5 MHz.
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Calculation: In 8085, the operating frequency is half of the crystal frequency, ie.Operating frequency = 5/2 = 2.5 MHz Time for one T -state = Number of T-states required = 1 x 106 Source program : - LXI B, count : 16 - bit count
- BACK: DCX B : Decrement count
- MOV A, C
- ORA B : Logically OR Band C
- JNZ BACK : If result is not zero repeat
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