Test: Examples of Embedded System Digital Signal Processing

# Test: Examples of Embedded System Digital Signal Processing

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## 15 Questions MCQ Test Embedded Systems (Web) | Test: Examples of Embedded System Digital Signal Processing

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Test: Examples of Embedded System Digital Signal Processing - Question 1

### What are the factors of filters which are determined by the speed of the operation in a digital signal processor?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 1

Explanation: The bandwidth of any filter depends on the speed of operations held in a digital signal processor.

Test: Examples of Embedded System Digital Signal Processing - Question 2

### How many tables does an FIR function of a digital signal processor possess?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 2

Explanation: Digital signal processor function involves setting up of two tables and one is for sampled data and the other table is for filter coefficients which determine the filter response. It takes values from the table and performs programs.

Test: Examples of Embedded System Digital Signal Processing - Question 3

### Why is said that branch prediction is not applicable in a digital signal processor?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 3

Explanation: Loop control timing varies depending on the branch predictions which inturn make bandwidth predictions difficult thereby lowering the bandwidth of the digital signal processor.

Test: Examples of Embedded System Digital Signal Processing - Question 4

Which architecture can one overcome the low bandwidth issue in MC6800 family?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 4

Explanation: RISC architecture can offer some improvement in the low bandwidth issue since it has the ability to perform operations in a single cycle.

Test: Examples of Embedded System Digital Signal Processing - Question 5

Which architecture in digital signal processor reduces the execution time?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 5

Explanation: Harvard architecture in a digital signal processor allows continuous data fetching and performing the corresponding instructions.

Test: Examples of Embedded System Digital Signal Processing - Question 6

Which of the following processors also can work as a digital signal processor?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 6

Explanation: ARM9E can also have DSP level of performance without having a digital signal processor by its enhanced DSP instructions.

Test: Examples of Embedded System Digital Signal Processing - Question 7

What types of modules are used in the digital signal processor to form the loop structure?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 7

Explanation: By using hardware multipliers, counters etc the entire hardware can be redesigned to perform some specific functions which are used in digital signal processors. One such is the modulo-counter to form the loop structure.

Test: Examples of Embedded System Digital Signal Processing - Question 8

Name a processor which is used in digital audio appliances.

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 8

Explanation: Motorola DSP56000 is a powerful digital signal processor which is used in digital audio applications which have the capability of noise reduction and multi-band graphics whereas 8087 is a coprocessor and 80486 and 8086 are microprocessors.

Test: Examples of Embedded System Digital Signal Processing - Question 9

How many bit does DSP56000 processor have?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 9

Explanation: In order to increase the resolution, DSP56000 is a 24-bit data word processor.

Test: Examples of Embedded System Digital Signal Processing - Question 10

How many buses did DSP56000 possess?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 10

Explanation: It possess three separate external buses, one is for the program and the remaining two buses are for X and Y memories for data.

Test: Examples of Embedded System Digital Signal Processing - Question 11

Which of the following architecture does DSP56000 possess?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 11

Explanation: DSP56000 possess Harvard architecture since this architecture has separate bus for program memory and data memory.

Test: Examples of Embedded System Digital Signal Processing - Question 12

What does AAU stand for?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 12

Explanation: DSP56000 possess two external bus switches in which one is for data and the other is for the address for communicating with the outside world and these two switches are reproduced by the internal data bus and AAU.

Test: Examples of Embedded System Digital Signal Processing - Question 13

How many address register does the AAU of a DSP56000 have?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 13

Explanation: AAU have 24 address registers in three banks of eight.

Test: Examples of Embedded System Digital Signal Processing - Question 14

How many register does a DSP56000 have?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 14

Explanation: DSP56000 have six 24-bit registers for controlling the loop counts,operating mode, stack manipulation and condition codes.

Test: Examples of Embedded System Digital Signal Processing - Question 15

Which of the following bits are used for sign extension in DSP56000?

Detailed Solution for Test: Examples of Embedded System Digital Signal Processing - Question 15

Explanation: The DSP56000 have a 24-bit program counter in which the upper 8 bits are only used for sign extension.

## Embedded Systems (Web)

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## Embedded Systems (Web)

47 videos|69 docs|65 tests