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Microprocessor

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

 320ns
 960ns
 640ns
 1280ns

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Microprocessor
Which language could be used for programming an FPGA.

 None
 Verilog
 VHDL
 Both A and B

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Microprocessor
A mask programmed ROM is

 programmed at the time of fabrication
 erasable electrically
 programmed by the user
 erasable and programmable

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It counts 16-bits at a time
 It facilitates the user storing 16-bit data temporarily
 There are 16 address lines
 It has to fetch two 8-bit data at a time

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Processor is capable of waiting
External buffer is used
Either A or B
Neither A nor B

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Microprocessor
After RESET 8255 will be in

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

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