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Differentiate general purpose processor, single purpose processor and ASIC with respect to design matrix.
Jan 17, 2018
May 9, 2018
Differentiate general purpose processor, single purpose processor and ASIC with respect to design matrix, with suitable example.
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Jan 18, 2018
Jan 18, 2018
General purpose processor
General purpose processor is a Programmable device.
General purpose processor used in microprocessor.
General purpose processor have general data path with large register file.
General purpose processor have general ALU.
General purpose processor take less time to market.
General purpose processor have low NRE cost.
General purpose processor have high flexibility.
General purpose processor is use for variety of applications.
It is manufactured in large scale.
Performance is not high.
Size of general purpose processor is large.
So its efficiency is less.
Design cost and time of general purpose processor is low.
It perform variety of computation and consists of arithmetic and logic units (ALUs).
General purpose processor is use in laptop or desktop.
General purpose processor have the largest flexibility.
Example for general purpose processor is Pentium.
Single purpose processor
Single purpose processor is a Digital circuit which designed to execute exactly one program.
In single purpose processor no program memory is required.
Single purpose processor is fast.
Single purpose processor consume low power.
Single purpose processor have small memory.
Single purpose processor is design to execute only one program.
It perform particular computation task.
So it have faster performance.
Size of single purpose processor is small.
Power consumption is low.
Size is small means it have less multiplexers.
No program memory.
Coprocessor, Floating point processing and peripherals are the examples of single purpose processor.
The datapath contains only required components.
Example for single purpose processor is accelerator or peripheral.
Application specific processor
Application specific processor is the compromise between general purpose and single purpose processor.
Application specific processor have Programmable memory.
Application specific processor optimise for a particular class of application having common characteristics.
Application specific processor have optimised data path.
Application specific processor have a special unit function.
Application specific processor have some flexibility.
Application specific processor have good performance, size, and power.
It is designed for specific application.
ASIP have good flexibility with good performance.
It have low cost and low power consumption.
So efficiency is high.
Embedded microcontrollers, network processor and digital signal processor are the types of Application Specific Instruction Set Processor (ASIP).
It have higher computational speed.
And higher datapath utilization due to programmability.
Examples of application specific processor are embedded microcontroller, network processor and DSP.
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