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ESD Module-01 Electronics
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  1. Digital Signal controller
  • Microcontrollers :- designed having limited processing power.

  • Can execute only simple control algorithms.

  • DSPs :- Having signal processing capabilities.

  • used for high end applications

  • Do not have control capabilities of microcontrollers

  • DSC is a combination of a $\mu$C and DSP

  • like $\mu$C, DSC have -i) Fast interrupt response

ii) Control oriented peripherals (PWN, watchdog etc)

iii) Usually programmed in C++

  • Like DSP, DSC have

i) single cycle multiply and accumulate MAc instructions

ii) Barrel shifters

iii) Large Accumulators

  • Main applications of DSCs

i) Motor control

ii) Sensor processing applications

  • Features of DSC

i) H/w to perform MAC operation

ii) Ability to access multiple mem locations simultaneously

iii) Ability to form addresses and fetch operands without having battleneck

iv) Includes many on-chip peripherals

  • Eg Of DSC

56800 DSC by Motorola

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