GATE IN 2021 IN Q11: Digital Electronics

A 16-bit microprocessor has twenty address lines (

) and 16 data lines. The higher eight significant lines of the data bus of the processor are tied to the 8-data lines of a 16 Kbyte memory that can store one byte in each of its 16K address locations. The memory chip should map onto contiguous memory locations and occupy only 16 Kbyte of memory space. Which of the following statement(s) is/are correct with respect to the above design:

Your answerSelect all correct options. You can choose more than one.

If the 16 Kbyte of memory chip is mapped with a starting address of 8000H, then the ending address will be 83FFF.

The active high chip-select needed to map the 16 Kbyte memory with a starting address at F000H is given by the logic expression

The 16 Kbyte memory cannot be mapped with contiguous address locations with a starting address as 0F000H using only

for generating chip select.

The above chip cannot be interfaced as the width of the data bus of the processor and the memory chip differs.

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Section: Instrumentation Engineering
Question type: Multiple select (MSQ)
Marks: 1 mark

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Question 11: Digital Electronics

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GATE IN 2021 · Paper 1

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instrumentation

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process control

digital electronics

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Question 11

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GATE IN 2021 · Paper 1

Practise related topics

instrumentation

measurement

process control

digital electronics

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