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.

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HiFi diagram

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

Small Battery-Efficient DSP for Always-On Audio, Vision, and AI/ML

  • All the features of HiFi 1 DSP
  • 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

Fixed Pt MACs per Cycle

32x32

1

32x16

2

16x16

4

8x16

8

8x8

8

SP/HP FPU (integrated, optional)

2x4-way/2x8-way

DP FPU (integrated, optional)

Scalar

Imaging/Vision ISA

Yes

Expanded Instructions for NN

Yes

Arithmetic decoding

Yes

AVS (Huffman and bitstream operation)

Yes

Coremark

5.25

Partners

Cadence, through its Tensilica processor IP, brings together best-in-class products and services from industry leaders to help you accelerate the development of your SoC designs while meeting your demanding power and performance requirements. Browse the list of Tensilica processor IP service partners below.

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