Many applications that use an ARM processor as a controller also require significant digital signal processing performance. A typical GSM mobile telephone handset is a case in point; first-generation ARM-based designs typically incorporate a DSP core on the same chip as the ARM core, and the system designer has to make carefulchoices regarding which system functions are best implemented on the DSP core and which on the ARM core. DSP cores have programmers’ models that are very different from the ARM’s model. They employ several separate data memories, and often require the programmer to schedule their internal pipeline very carefully if maximum throughput is to be obtained. Synchronizing the DSP code with the ARM code that is running concurrently is a complex task. ARM Limited has introduced two different extensions to the ARM architecture in attempting to simplify the system design task in applications which require both controller and signal processing functions: the Piccolo coprocessor, and the signal processing instruction set extensions in ARM architecture v5TE.
Keyword :
processor ,signal processing ,signal control ,processors ,instruction ,digital signal ,cortex ,unveils ,texas instruments ,technology ,microcontroller ,memory ,software ,signal ,power consumption ,motor control ,microcontrollers ,signal processor ,processor features ,processor architecture ,pipeline ,optimode ,nxp semiconductors ,neon technology ,mpcore ,mcu marketing ,low-power ,low power ,instruction set ,implementation ,floating point ,family processors ,family ,embedded processor ,ee times ,dsp core ,digital signal processor ,digital signal processing ,developers ,design ,coprocessor ,consumer electronics ,capabilities ,audio processing ,arm processors ,arm processor ,arm limited ,arm architecture ,architecture ,algorithms.
