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Microprocessor

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

Can not change
Complements
Sets
Clears

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Microprocessor
Total numbers of output pins in 8085 microprocessor are

 40
 27
 30
 13

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 INTR
 RST 7.5
 TRAP
 RST 5.5

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 EI
 DI
 RIM
 SIM

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Microprocessor
While INX B instruction execute,

 only carry and zero flags will be affected
 only carry flag will be affected
 no flags will be affected
 all flags will be affected

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Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 all bits set (i.e. FFH)
 all bits reset (i.e. 00H)
 irrelevant
 same as the content of A7-A0

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