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Microprocessor

Microprocessor
Identify the non-programmable interfacing device from the following

 8295.
 8257.
 8212.
 8255.

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH SP
 POP PSW
 PUSH A
 PUSH PSW

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are output
 mode 2
 unchanged condition
 mode 0; all ports are input

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

 640ns
 960ns
 320ns
 1280ns

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Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 16
 8
 5

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Microprocessor
Output of the assembler in machine codes is referred to as

 Macroinstruction
 Source program
 Symbolic addressing
 Object program

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