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Microprocessor

Microprocessor
8085 microprocessor has how many pins

  30.
 39.
  40.
 41.

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 XRI 0FH
 ANI 0FH
 CMA
 ORI 0FH

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Microprocessor
IC 7485 cannot be cascadeD.

True
False

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Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 Stack Pointer
 D-E
 PSW
 B-C

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Microprocessor
The stack pointer

 resides in microprocessor
 resides in ROM
 may be in RAM or ROM
 resides in RAM

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T1 & T2
 T4 & T1
 T3 & T4
 T2 & T3

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