Microprocessors - ECE Questions and Answers

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If SRAM (Static RAM)has . In which of the following modes this SRAM is operating

Read

Write

Stand by

none of the above

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Which of the following is true with respect to EEPROM(Electrically Erasable Programmable ROM)?

Contents can be erased byte wise only

Contents of full memory can be erased together

Contents can be erased using Ultra Violet Rays

Contents cannot be erased

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What is meant by Pseudo instructions

Instructions that are ignored by microprocessor

Assembler directives

Instructions that are treated like comment

False instructions

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Full form of SD RAM?

Synchronous Dynamic RAM

Static Dynamic RAM

Semi Dynamic RAM

Second Dynamic RAM

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The number of execution units in the Pentium Processor are ____

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8251 is a ____

UART

USART

Programmable Interrupt Controller

Programmable Interval Timer/Counter

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Which of the following is present In 8088 Micro processor

16 bit data bus

4 byte pre "“ fetch queue

6 byte pre "“ fetch queue

16 bit address bus

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Which of the following pins are used in the microprocessor to request & acknowledge a DMA Transfer (Direct Memory Access)

Ready & Wait

Reset & Ready

Hold & HLDA

None of these

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Bus cycle is equal to ______number of clocking periods

Two

Three

Four

Six