R-Car/Boards/SILK:Hardware

Board Layout

Power Plug

Center Positive 5V connector

R-Car SILK board uses a 5.5 x 2.1mm barrel 5V power plug. It is a Center Positive power supply, indicating that the center (tip) of the output plug is positive (+), the outer barrel is negative (-).

North American Power Supply from Digikey - 5V@2.5A -CUI EPSA050250U-P5P-EJ
European Power Supply from Digikey - 5V@2.5A - CUI EPSA050250UE-P5P-EJ
Powe Supply from Sparkfun - 5V@2A - TOL-12889
Power Supply from Adafruit - 5V@2A - PRODUCT-ID:276
Power Supply from SeeedStudio - 5V@2A SKU: POW06182B

Switches and Buttons

SW1 (SSI_DATA1 Routing)

SW1
Function	Pin 1 side (default)	Pin 3 side
SSI_SDATA1 Selection	U22 AKM AK4643 Audio Codec	U15 ADV7511 HDMI transmitter

SW1 selects the device to be connected to the SSI_DATA1/ETH_RXD0_B (GP-5-13) pin of the R-Car E2. The pin is normally set to receive mode.

Position	Function
Pin 1 side	Connects the SSI_DATA1/ETH_RXD0_B pin of the R-Car E2 to the SDTO pin 12 of the AK4643 The SSI_DATA1 pin of the R-Car E2 must be set to input.
Pin 3 side	Connects the SSI_DATA1/ETH_RXD0_B pin of the R-Car E2 to the I2S1 pin (pin 6) of the Analog Devices ADV7511. The SSI_DATA1 pin of the R-Car E2 should be set to output.

SW2 (TRST# Pull-up)

SW2
Function	Pin 1 side	Pin 2 side	Pin 3 side
SSI_SDATA1 Selection	Pulled up	Reserved	Pulled down

SW2 selects whether to pull up or down the TRST# pin of the R-Car E2 JTAG interface.

SW3, SW4, SW6 (Push Buttons)

Button #	GPIO pin
SW3	GP-5-10/IRQ9
SW4	GP-5-11
SW5	GP-5-12

Active signal (low or high) for SW3-SW5 is selected by the corresponding bit of POSNEG register. Refer to to the section GPIO in the R-Car E2 Hardware Manual for details.

SW7 (Mode Setting A)

SW7
No	Function	OFF	ON
1	MD21 JTAG mode	1 Coresight Debug Port	0 Boundary Scan
1	MD19 DDR3-SDRAM bus clock	1 DD3-1333	0 Prohibited

MD21 determines the mode of JTAG. Select OFF position to use JTAG debugger.
MD19 determines SDRAM clock speed. It must remain in OFF position to select DDR3-1333.

SW9 (SPI Flash Memory Selection)

SW9
Function	Pin 1 side (default)	Pin 3 side
SPI Flash memory selection	64 MB U6 S25FL512SAGMFIG11	4 MB U7 S25FL032P0XMFI011

The R-Car E2 Application Development board is equipped with the SPI flash memory of 512 Mbits (U6: S25FL512SAGMFIG11) and the SPI flash memory of 32 Mbits (U7: S25FL032P0XMFI011). When SW9 is set to the pin 1 side, the SSL pin of the R-Car E2 is connected to the flash memory of 512 Mbits. When SW9 is set to the pin 3 side, the SSL pin of the R-Car E2 is connected to the flash memory of 32 Mbits.

SW10 (USB2.0 Channel 0 Host or Function Selection)

SW10
Function	Pin 1 side (default)	Pin 3 side
USB0 mode	USB Host OVC	USB function VBUS

SW10 selects the mode of USB port 0 located on top of the USB connector.

Position	Function
Pin 1 side	USB0 is in host mode (default) USB0_OVC/VBUS pin goes low (0) if an overcurrent is detected on the USB power supply switch BD82065FVJ (U8).
Pin 3 side	USB0 is in function mode. VBUS from USB connector (CN2) is connected to the USB0_OVC/VBUS pin of the R-Car E2.

SW12 (User-Defined Software Switch)

SW12
No	Function	ON
1	bit 0, GP-3-9/AVB_RXD7	1
2	bit 1, GP-3-10/AVB_RX_ER	1
3	bit 1, GP-3-11/AVB_COL	1
4	bit 1, GP-3-12/AVB_TX_EN	1

Before using SW12 as a general-purpose input switch, set up the GPSR3 register of the R-Car E2 to select the GPIO function and set the PUPR3 register to enable pulling up. For details, refer to the section on the Pin Function Controller (PFC) in the R-Car E2 Hardware Manual.

LEDs

LD1 (blue): indicates that 5V power has been applied to the board.

LD2 (red): indicates that the board is turned on and has 3.3V power.

Turning On and Off

Special sequence is required for turning on and off the power supply to the R-Car E2 SILK board:

To turn ON: Press SW11 once
To turn OFF: Long press SW11

Connectors

Video Out

Connecting a monitor with touchscreen to Renesas R-Car E2 SILK board

HDMI (CN6)

Digital RGB888 signal from E-Car E2 DU0 is connected to Analog Devices ADV7511 HDMI transmitter. Internal registers of ADV7511 are accessible via I²C interface (slave addresses: 0x72 for writring, 0x73 for reading).

The following displays have been tested with SILK board:

Gechic On-Lap1502I Touch Monitor (Don't forget to set CONFIG_HID_MULTITOUCH and connect USB touchscreen)
Lilliput 10' with capacitive touch screen (NOTE: picture quality is not good due to limited native resolution]
Xenarc 7' capacitive touch

VGA (CN9)

Digital RGB666 signal from E-Car E2 DU1 is connected to Analog Devices ADV7123 video D/A converter. This signal is then feed to the CN9 VGA connector.

The following displays have been tested with SILK board:

Gechic On-Lap1502I Touch Monitor (Don't forget to set CONFIG_HID_MULTITOUCH and connect USB touchscreen)

External LCD display (CN8)

Connecting LCD-KIT-B01 to Renesas R-Car E2 SILK board

Renesas R-Car E2 SILK board has a dedicated connector for LCD-KIT-B01 touchscreen panel.

Datasheet is available in Japanese.

I²C interface is available for getting touchscreen data.

Audio

SSI routing on Renesas R-Car E2 SILK board

Analog In/Out

AKM AK4643 audio codec is integrated on Renesas R-Car E2 SILK board.

AK4643 is in slave mode after reset and can be switched to master by writing to a special resiter via I²C interface. It is assumed that SSI_DATA0 is set to transmit mode and SSI_SDATA1 is set to receive mode.

HDMI (CN6)

TBD Describe Audio Out through HDMI connector

Debug Interface (CN1)

Pinout of ARM JTAG connector

Renesas R-Car E2 SILK board includes 20-pin header for attaching ARM JTAG debugger. TCK, TDI and TMS have internal 1.8V pull-up resistors. An additional resistor can be soldered to the board to add 1.8V pull-up to ASEBRK pin. Refer to Board manual for more information.

MicroSD card slot

MicroSD card slot (CN4) is connected to SD card host interface SDHI1 of R-Car E2. When GP4_26 is set to 1, power is supplied. When GP4_26 is set to 0, power is shut off.

eMMC

8GB eMMC MTFC8GLWDQ-3M AIT Z (U5) is installed on Renesas R-Car E2 SILK board. It is connected to the SoC via 8-bit MMC interface.

eMMC is gouverned by JESD84-B50 standard.

Ethernet

R-Car E2 SILK board has one 10/100 Ethernet port compliant with IEEE 802.3u. Micrel KSZ8041 (U13) PHY is used, in RMII mode. The port is Auto MDI/MDI-X Since Ethernet AVB and EthetMAC use same pins of E2, they cannot be used simultaneously. EtherMAC_B can be used with Ethernet AVB.

R-Car_E2:Ethernet performance

Video In

Video Input interface on SILK board could be used for misc. sources of standard analog baseband television signals compatible with NTSC, PAL. (For example: traditional analog CCTV or car front/rear cameras, media players)

Video signal from Video In connector is converted with Analog Devices ADV7180 into 4:2:2 component 8-bit ITU-R BT.656 video data and passed to R-Car E2 VIN0 interface

R-Car/Boards:Testing Video In

USB

USB connector on Renesas R-Car E2 SILK board

CN2 USB type A connector has two ports. Upper port is Ch 0, Lower port is Ch 1. USB 2.0 mode is supported to the corresponding USBx_OVC pin.

In host mode, each port is current-limited at 2.4 A by ROHM BD82065FVJ. Overcurrent is reported to Renesas R-Car E2.

USB Host

USB host mode is possible for both Ch 0 and Ch 1. For Ch0, SW10 should be switched to pin 1 side.

USB Function

USB function mode is possible for Ch0 when SW10 is set to pin 3 side. VBUS from CN2/lower is routed to USB0_OVC/VBUS pin of Renesas R-Car E2.

Refer to R-Car E2 hardware manual for more information.

Debug Serial (CN13)

Renesas R-Car E2 debug interface SCIF2 is exposed to microUSB connector (CN13) via Silicon Labs CP2102. Refer to R-Car/Boards/SILK#Booting_over_TFTP_from_U-Boot for configuring and using the interface.

CP2102 is self powered and requires no power over USB. Keep in mind, that CP2102 will not be detected b the host PC until Renesas R-Car E2 SILK board is connected to 5 V power source.

EXIO (JP1, JP2)

Pin locations on EXIO connectors (JP1, JP2) of Renesas R-Car E2 SILK board

Renesas R-Car E2 board includes two EXIO connectors. Both are "Box Wafer, 2.0-mm pitch".

JP1 has I²C interface, connected to SDA3/SCL3 of Renesas R-Car E2.

List of EXIO Connector (JP1) Pins
Pin	Signal	Pin	Signal
1	MSIOF1_SYNC	2	MSIOF1_SCK
3	MD5/MSIOF1_TXD	4	MISOF1_RXD
5	I2C3_SDA_B	6	I2C3_SCL_B
7	GP3_22	8	GP3_30
9	GND	10	GND

List of EXIO Connector (JP2) Pins
Pin	Signal	Pin	Signal
1	D3.3V	2	GP1_14/TS_SDATA0_B
3	GP1_16/TS_SDEN0_B	4	GP1_17/TS_SPSYNC0_B
5	GP1_15/TS_SCK0_B	6	GND

U17 - Placeholder

U17 can be used to connect Apple Authentication IC (I2C4 on SILK)

Integrated WiFi/Bluetooth Module

Information regarding on-board WiFi/BT module will be made available later (January 2015)

Connecting external USB devices

USB Bluetooth

TBD

USB 3G Modem

TBD

USB Video Camera

TBD

USB HID

TBD

USB Ethernet

TBD

USB GPS

TBD

USB CAN

TBD

USB Radio

TBD

R-Car/Boards/SILK:Hardware

Contents

Board Layout

Power Plug

Switches and Buttons

SW1 (SSI_DATA1 Routing)

SW2 (TRST# Pull-up)

SW3, SW4, SW6 (Push Buttons)

SW7 (Mode Setting A)

SW9 (SPI Flash Memory Selection)

SW10 (USB2.0 Channel 0 Host or Function Selection)

SW12 (User-Defined Software Switch)

LEDs

Turning On and Off

Connectors

Video Out

HDMI (CN6)

VGA (CN9)

External LCD display (CN8)

Audio

Analog In/Out

HDMI (CN6)

Debug Interface (CN1)

MicroSD card slot

eMMC

Ethernet

Video In

USB

USB Host

USB Function

Debug Serial (CN13)

EXIO (JP1, JP2)

U17 - Placeholder

Integrated WiFi/Bluetooth Module

Connecting external USB devices

USB Bluetooth

USB 3G Modem

USB Video Camera

USB HID

USB Ethernet

USB GPS

USB CAN

USB Radio

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