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What is the total delay for executing the following program?
MVI C, FFH DCR C JNZ LOOP
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- 1.8 ms
- 1.5 ms
- 2.0 ms
- 2.5 ms
Correct Option: A
1.8 ms
Clock frequency, f = 2 MHz
| = | 1 | = | 1 | × 10-6 = 0.5 μs |
| f | 2 |
Time period to execute,
MVI = 7 T-states × 0·5
T = 3·5 μs
Time Delay = T × Loop T-states × N10
= 0·5 × 10–6 × 14 × 255
= 1785 μs ≈ 1·8 μs
