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Processor 草榴社区 for Digital Stethoscopes
Overview
Connected medical devices are one of the fastest growing segments within IoT. Digital stethoscopes electronically amplify body sounds by converting acoustic waves to electrical signals. These digital signals can be graphically analyzed and wirelessly transmitted over the internet to support remote diagnosis.
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SD Card
- ARC EM4 for power-critical, bus-powered apps like SD cards
- Best-in-class code density reduces memory size & power
- Fast interrupts and 2nd register file for real-time response
- Custom instruction extensions to add differentiating HW
Bluetooth Low Energy
- ARC EM4 and EM6 processors optimized for power & area
- Tightly coupled communications MACs for lower latency, power
- Programmable accelerators (ASIP) for matrix, FFT, filtering
Power management IC
- Power- and area-efficient ARC EM4 for state machine calculations
- Sensor & Control Subsystem integrates control & register interfaces
- Battery monitoring via ADC interface in Sensor & Control Subsystem
CPU
- Ultra-small footprint embedded processing with ARC EM cores
- Data Fusion Subsystem for audio processing
- Best-in-class DMIPS/mW for battery-operated applications
Audio Subsystem
- Small, low power ARC EMxD processor for audio DSP
- Dual-core AS221BD for enhanced audio & multichannel HD
- SoundWave Audio Subsystem integrates audio HW, SW, interfaces
- Broad portfolio of certified audio codecs