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