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Microprocessor

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

 640ns
 320ns
 960ns
 1280ns

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

False
True

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
5 and 4 respectively
4 and 5 respectively
4 and 3 respectively

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Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PLD
 PROM
 PLA
 PAL

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

 PUSH PSW
 PUSH SP
 PUSH A
 POP PSW

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Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

log2 (m)
m
2^m
2*m

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