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Microprocessor

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

 RST 5.5
 TRAP
 RST 7
 INTR

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 320ns
 1280ns
 640ns
 960ns

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 1 and mode 2
Mode 0 and mode 2
Mode 0, mode 2 and mode 3
Mode 0 and mode 1

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Mux
Gate
Register
Decoder

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Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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

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

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