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Microprocessor

Microprocessor
Pick up the programmable interrupt controller from the following

 8257
 8259
 8275
 8279

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 serial I/O is possible through SIM and RIM instruction
 there is a pin available for serial input
 there is a pin available for serial output
 serial I/O is not possible

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Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 0043H
 0000H
 003CH
 002CH

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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.

 EI
 DI
 SIM
 RIM

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 01000000
 11000100
 00000100
 010001000

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

 INTR
 TRAP
 RST 5.5
 RST 7

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