Renesas R-Car H2 is an Octo Core big.LITTLE Processor for Your Car

Renesas announced a new automotive SoC called the R-Car H2 that features 4 Cortex-A15 cores together with 4 Cortex A7 cores (optional) in big.LITTLE configuration, as well as an Imagination PowerVR Series6 G6400 GPU. This SoC can optionally come with Renesas SH-4A, a real-time processing CPU core acting as a multimedia engine (MME) , and Renesas’ IMP-X4 core, a real-time image processing unit that enables developers to implement augmented reality application such as 360-degree camera views and image recognition.

This Renesas processor is a multimedia power house, as it can handle 4x 1080p video en/decoding, including Blu-Ray support at 60 frames per second, as well as image/voice recognition and high-resolution 3D graphics with virtually no CPU usage.

Renesas R-Car H2 Block Diagram
Renesas R-Car H2 Block Diagram

Here are R-Car H2’s specifications provided on Renesas website:

Product number R8A7790x
Power supply voltage 3.3/1.8 V (IO), 1.5/1.35 V (DDR3), 1.0 V (Core)
CPU core ARM Cortex-A15
ARM Cortex-A7
Quad (device option)
SH-4A core
(device option)
Cache memory L1 Instruction cache:
32 KB
L1 Operand cache:
32 KB
L2 Cache:
2 MB
L1 Instruction cache:
32 KB
L1 Operand cache:
32 KB
L2 cache:
512 KB
Instruction cache:
32 KB
Operand cache:
32 KB
External memory DDR3-SDRAM
Maximum operating frequency: 800 MHz
Data bus width: 32 bits × 2 ch (6.4 GB/s × 2)
Expansion bus Flash ROM and SRAM,
Data bus width: 8 or 16 bits
PCI Express 2.0 (1 lane)
Graphics PowerVR Series6 G6400 (3D)
Renesas graphics processor (2D)
Video Display Out × 3 ch (2 ch: LVDS, 1 ch: RGB888)
Video Input × 4 ch
Video codec module (H.264/AVC, MPEG-4, VC-1)
IP conversion module
JPEG accelerator
TS Interface × 2 ch
Video image processing (color conversion, image expansion, reduction, filter processing)
Distortion compensation module (image renderer) × 4 ch
High performance Real-time Image recognition processor (IMP-X4) (device option)
Audio Audio DSP
Sampling rate converter × 10 ch
Serial sound interface × 10 ch
Storage Interface USB 3.0 Host interface × 1 port (wPHY)
USB 2.0 Host interface × 3 port (wPHY)
SD Host interface × 4 ch (SDXC, UHS-I)
Multimedia card interface × 2 ch
Serial ATA interface × 2 ch
In car network and automotive peripherals Media local bus (MLB) Interface × 1 ch (6pin / 3pin interface selectable)
CAN Interface × 2 ch
IEBus Interface
GPS baseband module (Galileo, GLONASS) (device option)
Ethernet controller AVB (IEEE802.1BA, 802.1AS, 802.1Qav and IEEE1722, GMII/MII, without PHY)
Security Crypto engine (AES, DES, Hash, RSA)
Other peripherals DMA controller
LBSC DMAC: 3 ch / SYS-DMAC: 30 ch / RT-DMAC: 3 ch / Audio-DMAC: 26 ch / Audio (peripheral)-DMAC: 29 ch
32bit timer × 12 ch
PWM timer × 7 ch
I2C bus interface × 8 ch
Serial communication interface (SCIF) × 10 ch
Quad serial peripheral interface (QSPI) × 1 ch (for boot)
Clock-synchronized serial interface (MSIOF) × 4 ch (SPI/IIS)
Ethernet controller (IEEE802.3u, RMII, without PHY)
Interrupt controller (INTC)
Clock generator (CPG) with built-in PLL
On chip debugger interface
Low power mode Dynamic Power Shutdown (CPU core, 3D, IMP)
AVS and DVFS function
DDR-SDRAM power supply backup mode
Package 831 pin Flip Chip BGA (27 mm × 27 mm)

For development, Renesas provides ICE for ARM CPU, as well as an evaluation board including car information system-oriented peripheral circuits. The platform supports QNX Neutrino RTOS, Windows Embedded Automotive, and Linux.

Renesas R-Car H2 samples are available now, and mass production is scheduled for mid-2014. More information is available on on Renesas R-Car H2 page.


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