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Microprocessor

Microprocessor
Which of the following instruction is not possible in 8085?

 POP PSW
 POP D
 POP B
 POP 30 H

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, Z, AC, P, OV
 S, OV, AC, P, CY
 S, Z, AC, P, CY
 S, Z, OV, P, CY

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Microprocessor
Identify the programmable interval timer from the following

 8275
 8279
 8253
 8252

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Microprocessor
CALL instruction is a ______ instruction.

 4 bytes
 2 bytes
 3 bytes
 1 bytes

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Microprocessor
After RESET 8255 will be in

 mode 2
 unchanged condition
 mode 0; all ports are input
 mode 0; all ports are output

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Microprocessor
When the write enable input is not asserted, the gated D latch _________ its output.

Sets
Complements
Can not change
Clears

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