Renesas Electronics RH850/U2B is an automotive SoC designed for electronic control unit (ECU) with used for hybrid ICE and xEV traction inverter, high-end zone control, connected gateways, and vehicle motion applications.
The processor includes up to eight 400MHz RH850 32-bit RISC performance cores with four of them in lockstep architecture for ASIL-D and ASIL-B compliance, as well as DR1000C RISC-V-based parallel co-processor (data flow processor) with vector extension (DFP) from NSITEXE designed to support “the fast execution of complex mathematical algorithms”.
Renesas RH850/U2B key features & specifications:
- CPU cores – 400MHz speed for up to 8+4 (LockStep) RH850 G4MH CPUs
- Memory – Up to 5.1MB RAM on-chip
- Up to 32MB Flash on-chip
- SFMA (Serial flash memory interface), eMMC interfaces for external storage
- Co-Processor – DR1000C RISC-V based MIMD high-performance embedded vector processor
- Embedded EMU3S (Embedded motor control unit), RDC3X (Position sensor interface), TSG3 (motor timer) for field-oriented traction motor (inverter) control, GTM v4.1 vehicle motion timer
- Up to 2x Gigabit Ethernet TSN including a switch function (RSwitch)
- Up to 5x ADC (12-bit), with a maximum of 128 channels, including 4+4+2+2 Track and Hold inputs
- Up to 14x DS-ADCs with a Digital Filter Engine
- CAN-FD, SPI, RHSB (MSC), RHSIF, SENT, LIN, UART, I2C, PSI5
- FuSa and Security
- Security module with EVITA Full support
- ISO26262 ASIL-D
- Temperature support up to 160°C Tj
NSITEXE is not some Windows executable, but the name of an IP vendor, established in 2017 as a spin-off from DENSO Corp., who designed the DR1000C among other advanced processors. The RISC-V-based parallel co-processor is comprised of up to 16 hardware threads that can efficiently utilize the vector processor and is required by automotive microcontrollers targetting safety-critical systems. It can be used for model predictive control, AI inference, sensor processing, and more.
Thanks to TLS for the tip.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.