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Microprocessor

Microprocessor
A field programmable ROM is called

 FPROM
 PROM
 MROM
 FROM

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 10
 13
 16
 7

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 244
 245
 246

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 00000000
 00000001
 None
 11111111

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Microprocessor
_____________is used to read the status of the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by loading into the A register a byte which defines the condition of the mask bits for the interrupts.

 RIM
 EI
 SIM
 DI

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Microprocessor
Identify the programmable DMA controller from the following

 8257
 8253
 8251
 8279

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