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Microprocessor

Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 D-E
 Stack Pointer
 PSW
 B-C

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Microprocessor
Identify the non-maskable interrupt from the following

 RST 7.5
 RST 5.5
 RST 4.5
 RST 6.5

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Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 1 K bytes
 8 K bytes
 4 K bytes
 10 K bytes

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 RST 5.5
 INTR
 TRAP
 RST 7

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Microprocessor
Pick out the matching pair

 SID; SIM
 S0;S1;wait status
 HOLD; DMA
 READY; RIM

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Microprocessor
Total number of modes the 8253 can work

 6
 4
 12
 8

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