HiFi 1 – An Ultra-Low Energy DSP for TWS, Bluetooth Headset and Always-on Applications
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Overview
Versatile, Ultra-Low-Power DSP for Audio, Voice, Vision, and AI
The Cadence Tensilica HiFi 1s DSP provides three benefits. First, it supports auto-vectorization by compiler to eliminate the need for hand-optimization, thereby opening it to every embedded programmer. Second, it enhances the always-on AI capability to allow higher-performance ML algorithms to run on an ultra-low power DSP. Third, it adds imaging ISA to support lightweight always-on vision processing.
Key Benefits
Auto-Vectorization, Expanded AI/ML, Versatility with Imaging ISA
Auto-Vectorization
Enables the compiler to automatically vectorize data arrays to utilize the SIMD structure of HiFi 1s DSP, eliminates the need for hand-optimization
Expanded AI and Base Platform Performance
Dedicated MACs and ISA enhancing ML/AI and upgraded base platform to LX8, allowing richer applications to run at ultra-low power levels
Lightweight Imaging and Vision
Imaging targeted ISA and MACs for always-on lightweight vision applications to run standalone or in conjunction with a Vision DSP
Double-Precision Floating-Point
Greatly accelerates double-precision math functions found in audio and voice code, obviating the need to tradeoff precision with range
Features
Small Battery-Efficient DSP for Always-On Audio, Vision, and AI/ML
- AI acceleration with 8 8x8 and 8x16 MACs and dedicated ISA
- Imaging ISA and 8 8-bit (and 8x16) MACs for lightweight vision applications
- Double-precision acceleration hardware for audio and vision math functions
- Auto-vectorization support for porting efficiency and fast TTM
Feature |
HiFi 1s |
|
|---|---|---|
Load Units |
1 |
|
VLIW Slots |
2 |
|
Scalar Operations |
2 slots |
|
Accumulator Width |
64-bit |
|
Auto-Vectorization |
Yes |
|
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HiFi 1 – An Ultra-Low Energy DSP for TWS, Bluetooth Headset and Always-on Applications
Discover HiFi 1 – The smallest, ultra-low-energy DSP for always-on sensor fusion, always-listening voice trigger, and Bluetooth/BLE codecs. HiFi1 is a DSP for a greener world, to serve a wide variety of energy-saving applications in markets ranging from consumer to automotive, industrial, and medical.