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1. In 8085 microprocessor system, what will be the total delay provided by the following loop.
MVI A, 11H
LXI B, 12FFH
Delay: DCX B
XTHL
NOP
XRA B
JNZ Delay where system clock is operating at 3 MHz.





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  • By: guest on 02 Jun 2017 12.55 am
    8085 T-States

    MVI A, 11H 7

    LX1 B, 12FFH 10

    Delay: DCX B 6

    XTHL 16

    NOP 4

    XRA B 4

    JNZ Delay 10/7

    Total T states = 7 + 10 + 255(6 + 16 + 4 + 4 + 7) + 10 = 9462 Therefore total delay introduced = = 3.154 m sec.
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