The R9A06G150 32-bit ASSP, developed in collaboration with RISC-V ecosystem partners, provides a production-ready voice-control system solution that has eliminated the need for RISC-V tools and upfront software investment.

Targeting residential and commercial building automation, home appliances, toys and healthcare devices, the ASSP supports multiple languages and user-defined keywords for voice-recognition operations. The foundation of a turnkey voice-control solution, it is pre-programmed using specialised application code developed by independent design houses.

The introduction reinforces Renesas’ position in the emerging market for the open-source RISC-V ISA (instruction set architecture) and follows introductions last year of a 32-bit motor-control ASSP and 64-bit general-purpose RZ/Five MPUs based on a 64-bit RISC-V CPU.

“Renesas continues to broaden our RISC-V MCU/MPU offering, in this case by delivering designers an innovative voice-command HMI with pre-developed software that shortens development time and time to market,” said Roger Wendelken, Senior Vice President in Renesas’ IoT and Infrastructure Business Unit. “Through close collaboration with the RISC-V partner ecosystem, this flexible, scalable ASSP solution allows customers interested in voice control to support different application classes on the same MCU hardware platform.”

The R9A06G150 is based on RISC-V processing IP from Andes Technology, which incorporated its AndesCore D25F CPU core based on the AndeStar V5 architecture.

Commenting Frankwell Lin, Andes’ Chairman and CEO, said, “The 32-bit AndesCore D25F was engineered to deliver high per-MHz performance in a small silicon footprint. Major mixed-signal ASSP developers such as Renesas can therefore concentrate on their core engineering innovation and outsource non-critical elements of their design to CPU core suppliers such as Andes.”

Renesas will deliver the first RISC-V voice-control ASSP pre-programmed with dedicated application code developed by the independent design house, Cyberon, an expert in voice-recognition technology, and Orbstar, a systems integrator specialising in embedded solutions.

As with previous motor control ASSPs, SEGGER Microcontroller is providing support for the voice-control ASSP with its complete ecosystem, including Embedded Studio and J-Link.

Key features include:

100MHz CPU with DSP instructions, floating-point extension and cost-optimized specification

Specialized audio PDM & SSI I/F for seamless connection to microphones and codecs

Compatible with low-cost analogue microphones and outputs

Low power consumption helps end products to save energy for a greener environment through optimal mix of lowest active current, reduced standby current, background operation, SRAM power-off choices, fast wakeup, low power timers

Controlled by external host I/F via SCI/Uart, SPI, I3C or I2C

Small package support for cost and integration effectiveness (QFN 48, 32, 24)

256K programme flash, 128K RAM, 16KB data flash

QSPI interface for easy memory expansion

Complete reference kit: hardware, software, tools, hardware/software datasheets, GUI manual, app notes

By: DocMemory
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