Overview

Displays and Display Size

As the use of color LCD panels in instrument cluster systems becomes more widespread, gauge control and graphics display are being combined even in smaller and medium size cars. The trend towards "gauge-less" displays is already progressing in high-end cars, where visibility and comfort are desired, and attractive, easy to see displays using 3D graphics on large, high-resolution panels are seen as one aspect of a car's individuality. In the future, display size and resolution are expected to continue increasing, even in the graphics displays used in low- to mid-end cars, along with the use of cluster systems that provide 3D graphics similar to that used in high-end cars.

3D Graphics

For these systems to become more mainstream the ability to realize rich reality image display that makes full use of 3D graphics, to display the cluster screen rapidly at the same time as the start-up of accessories, to realize high reliability that can prevent unauthorized access from the outside to the system in order to continuously convey accurate information of the instruments to the driver, and to enhance the performance of the many electronic equipment units and communications systems used in the car will all be required.

The Renesas R-Car D1 automotive system-on-chip (SoC) devices specialized for 3D instrument cluster systems were developed to overcome these issues. The R-Car D1 provides both the functionality and the performance, and since Renesas users can take advantage of the R-Car Consortium ecosystem that consists of over 170 companies, they will be able to develop 3D graphics cluster systems quickly.

Features
  • 3D graphics cluster systems can be developed easily by cooperating with Renesas partners
  • Enables rapid startup for instrument cluster systems, provides solutions that support rapid display of meter and gauge screens, and audio output
  • Driver safety protection and car hacking prevention by the provision of functional safety and security solutions
  • Supports Ethernet AVB for connection with navigation systems, USB to connect with smartphones, and CAN-FD to connect with automotive infotainment systems. Supports superlative system flexibility and ease of design
  • Development assets from the 2D graphics cluster RH850/D1x can be applied
  • If gauge control is required, system manufacturers can combine the R-Car D1 with the RH850/D1M to implement such systems
System Block Diagram

R-Car D1 System Block Diagram

Specification
Item R-Car D1 Specifications
Product No. R-Car D1
R7S721042*1*4
R7S721043*1*3*4
R7S721046*1*4*5
R7S721047*1*3*4*5
R7S721062*2*4
R7S721063*2*3*4
R7S721066*2*4*5
R7S721067*2*3*4*5
Power Supply Voltage 3.3V/1.8V (IO), 1.35V (DDR3L), 1.0V (core)
CPU Core Arm® Cortex®-A7 single core*6 *7
Max. frequency: 660MHz
Arm® Cortex®-A7 dual core*6 *7
Max. Frequency: 780MHz
Cache Memory L1 instruction cache: 32KB
L1 data cache: 32KB
L2 cache: 512KB
External Memory
(DDR3L)
DDR3L-SDRAM
Data bus width: 32 bits x 1ch
Max. frequency: 1066MHz Max. Frequency: 1333MHz
External Memory Expansion NAND Flash memory interface
Serial Flash memory interface
2D Graphics D/AVE HD 2D render core
Max. frequency: 260MHz Max. frequency: 330MHz
3D Graphics Imagination Technologies PowerVR® SGX540 core*8
Max. frequency: 260MHz Max. frequency: 330MHz
Video Video output interface x 2ch (LVTTL)
Max. output display size: 4096 x 2048
RSDS output interface x 1ch (shared with LVTTL)*6
LVDS output interface x 1ch
Video input interface x 2ch (LVTTL)
Max. input display size: 2048 x 2048
MIPI CSI-2 input interface x 1ch
Timing controller for LCD panel
Video decode processor (H.264/MPEG4-AVC, JPEG)*6
Video Output Checker Video output checker (VOCA) x 2ch
Video output CRC checker (DISCOM) x 4ch
Audio Serial sound interface x 2ch
PCM-PWM converter
Storage Interfaces USB 2.0 Host/Function interface (High-Speed/Full-Speed)
Multimedia card interface x 1ch
In-car Network and
Automotive Peripherals
Media Local Bus (MLB) interface x 1ch (3-pin interface)
Controller Area Network (CAN-FD support*6) x 3ch
Ethernet AVB 1.0-compatible MAC built in
Transfer speed: 100Mbps
Interface: IEEE802.3 standard MII
Ethernet AVB (802.1BA)
  • IEEE802.1BA
  • IEEE802.1AS
  • IEEE802.1Qav
  • IEEE1722
Other Peripherals SYS-DMAC x 30ch
Watchdog timer (RWDT) x 1ch
16-bit timer x 16ch
32-bit timer x 17ch
I2C bus interface x 2ch
Synchronous serial interface (MSIOF) x 7ch (SPI/IIS support)
Asynchronous high-speed serial interface (HSCIF) x 2ch
Asynchronous/Synchronous serial communication interface (SCIF) x 4ch
Package 543-pin FCBGA 1mm pitch (27mm x 27mm)

 

(Remarks)
*1 Arm Cortex-A7 single core
*2 Arm Cortex-A7 dual core
*3 RSDS output interface built in
*4 Video decode processor (H.264/MPEG4-AVC, JPEG) built in
*5 Controller Area Network interface (CAN-FD support)
*6 Option function due to a part number
*7 Arm® and Cortex® are registered trademarks of Arm Limited
*8 PowerVR® is a trademark of Imagination Technologies Limited

Arm® and Cortex® are registered trademarks of Arm Limited.
PowerVR® is a trademark of Imagination Technologies Limited. 
All names of other products or services mentioned are trademarks or registered trademarks of their respective owners.

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