HiFi 4

Overview

The Cadence® Tensilica® HiFi 4 DSP provides 32-bit fixed and floating-point performance, for highly demanding DSP applications in smart speakers, home entertainment, and automotive infotainment. It is well suited for complex multi-mic far-field processing and wake word detection with neural network (NN) techniques for use in voice assistants. It supports the latest object-based codecs for use in STB and TV products.

Key Benefits

Complex, Object-Oriented Codec

Provides efficient execution of complex audio codecs for use in TVs, STBs, and soundbars

High DSP Performance

Doubles the performance of HiFi 3z DSP for compute-intensive functions such as FFT and FIR, and accommodates the most performance-hogging algorithms such as ANC, noise suppression, and sound analytics

NN-Based Voice Assistant

Combines high DSP performance with enhanced NN performance and is an excellent choice for reliable far-field voice assistant functions for TVs, STBs, soundbars, and smart speakers

ISO 26262 Compliant

Certified as ASIL-compliant and equipped with both hardware and software safety mechanisms

Features

Support for eight 32x16-bit MACs per cycle under specific conditions
Four very long instruction word (VLIW) slot architecture capable of issuing two 64-bit loads per cycle
Optional vector floating-point unit available, providing up to four single-precision IEEE floating-point MACs per cycle
Software compatibility with the complete HiFi DSP product line, totaling over 300 HiFi-optimized audio and voice codecs and audio enhancement software packages
HiFi NN library offers optimized set of library functions commonly used in NN processing (especially speech), which can easily be integrated into popular machine learning frameworks


VLIW Slots		4
Fixed-Point MACs per Cycle	32x32	4
	24x24	4
	32x16	up to 8
	16x16	up to 8
Accumulator		64/ 72-bit
FPU (Optional)		2 Integrated 2-way SIMD Vector FPU
ITU Intrinsic Support		Yes
Circular Buffer Support		2
Bitstream VLE/VLD		Yes
User-Defined Instructions		Yes

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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Technologies

オートモーティブ向け機能安全

テンシリカのプロセッサは、既製のプロセッサ/DSP IPであれ、特定のアプリケーションに特化したカスタム・ドメイン・プロセッサであれ、機能安全アプリケーションを可能にすることをお約束します。

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テンシリカ・プロセッサ・テクノロジー

差別化、市場投入までの時間短縮、柔軟性の向上、最高のパフォーマンス、電力、面積を得るために

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TIE（Tensilica Instruction Extension）

パフォーマンス、エネルギー効率、差別化を最適化するDSP/プロセッサのカスタマイズ

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開発ツールチェーン

お客様のアプリケーションに完全にマッチし、構築しながら最適なプロセッサが得られることを保証します。

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Training & Support

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Cadence is committed to keeping design teams highly productive with a range of support offerings and processes designed to keep users focused on reducing time to market and achieving silicon success.