iWave iW-RainboW-G23S Installation manual

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
iW-RainboW-G23S
RZ/G1C Single Board Computer
Hardware User Guide

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
Document Revision History
Document Number
iW-PRFCC-UM-01-R4.0-REL1.1-Hardware
Revision
Date
Description
1.0
18th Aug 2017
Initial Release Version
1.1
12th Feb 2018
Updated Release for Production Version SBC
PROPRIETARY NOTICE: This document contains proprietary material for the sole use of the intended recipient(s). Do
not read this document if you are not the intended recipient. Any review, use, distribution or disclosure by others
is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), you are
hereby notified that any disclosure, copying distribution or use of any of the information contained within this
document is STRICTLY PROHIBITED. Thank you. “iWave Systems Tech. Pvt. Ltd.”

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
Disclaimer
iWave Systems reserves the right to change details in this publication including but not limited to any Product
specification without notice.
No warranty of accuracy is given concerning the contents of the information contained in this publication. To the
extent permitted by law no liability (including liability to any person by reason of negligence) will be accepted by
iWave Systems, its subsidiaries or employees for any direct or indirect loss or damage caused by omissions from or
inaccuracies in this document.
CPU and other major components used in this product may have several silicon errata associated with it. Under no
circumstances, iWave Systems shall be liable for the silicon errata and associated issues.
Trademarks
All registered trademarks, product names mentioned in this publication are the property of their respective owners
and used for identification purposes only.
Certification
iWave Systems Technologies Pvt. Ltd. is an ISO 9001:2015 Certified Company.
Warranty & RMA
Warranty support for Hardware: 1 Year from iWave or iWave's EMS partner.
For warranty terms, go through the below web link,
http://www.iwavesystems.com/support/warranty.html
For Return Merchandise Authorization (RMA), go through the below web link,
http://www.iwavesystems.com/support/rma.html
Technical Support
iWave Systems technical support team is committed to provide the best possible support for our customers so that
our Hardware and Software can be easily migrated and used.
For assistance, contact our Technical Support team at,
Email : [e-mail]
Website : www.iwavesystems.com
Address : iWave Systems Technologies Pvt. Ltd.
# 7/B, 29th Main, BTM Layout 2nd Stage,
Bangalore, Karnataka,
India –560076

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
Table of Contents
1. INTRODUCTION ............................................................................................................................................7
1.1 Purpose .............................................................................................................................................................7
1.2 Overview ...........................................................................................................................................................7
1.3 List of Acronyms................................................................................................................................................7
1.4 Terminlogy Description.....................................................................................................................................9
1.5 References ........................................................................................................................................................9
1.6 Important Note ...............................................................................................................................................10
2. ARCHITECTURE AND DESIGN....................................................................................................................... 11
2.1 RZ/G1C SBC Block Diagram .............................................................................................................................11
2.2 RZ/G1C SBC Features ......................................................................................................................................12
2.3 RZ/G1C CPU.....................................................................................................................................................14
2.4 Boot Media Setting Switch..............................................................................................................................15
2.5 Memory...........................................................................................................................................................16
2.5.1 DDR3 SDRAM ..............................................................................................................................................16
2.5.2 SPI NOR Flash .............................................................................................................................................. 16
2.5.3 eMMC Flash ................................................................................................................................................16
2.5.4 Micro SD Connector..................................................................................................................................... 17
2.6 Communication Features................................................................................................................................18
2.6.1 100/1000 Mbps Ethernet Port .................................................................................................................... 18
2.6.2 Dual USB 2.0 Host Ports ..............................................................................................................................19
2.6.3 USB 2.0 Device Port.....................................................................................................................................20
2.7 Video Features ................................................................................................................................................21
2.7.1 HDMI Port....................................................................................................................................................21
2.7.2 CVBS Input Port ...........................................................................................................................................22
2.7.3 CVBS Output Port (Optional).......................................................................................................................22
2.8 Other Features ................................................................................................................................................23
2.8.1 RTC Controller with Battery Connector .......................................................................................................23
2.8.2 SPI Flash Programming Header...................................................................................................................24
2.8.3 JTAG Header................................................................................................................................................ 25
2.8.4 Reset Switch ................................................................................................................................................27
2.9 Expansion Connector1 (40 Pin) Interfaces......................................................................................................28
2.9.1 Data UART Interface ...................................................................................................................................29
2.9.2 SPI Interface ................................................................................................................................................29
2.9.3 I2C Interface ................................................................................................................................................29
2.9.4 GPIO Interface.............................................................................................................................................29
2.10 Expansion Connector2 (40 Pin) Interfaces......................................................................................................32
2.10.1 LVDS Interface.............................................................................................................................................33
2.10.2 CAN Interface .............................................................................................................................................. 33
2.10.3 I2S Audio Interface ......................................................................................................................................33
2.10.4 Data UART Interface ...................................................................................................................................34
2.10.5 I2C Interface ................................................................................................................................................ 34

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2.10.6 PWM Interface ............................................................................................................................................34
2.11 Expansion Connector3 (20 Pin) Interfaces......................................................................................................37
2.11.1 Debug UART Interface.................................................................................................................................37
2.11.2 Data UART/I2C Interface.............................................................................................................................38
2.11.3 Parallel Camera Interface............................................................................................................................38
2.11.4 PWM Interface ............................................................................................................................................38
2.12 RZ/G1C Pin Multiplexing on Expansion Connectors .......................................................................................40
3. TECHNICAL SPECIFICATION.......................................................................................................................... 45
3.1 Electrical Characteristics .................................................................................................................................45
3.1.1 Power Input Requirement ...........................................................................................................................45
3.1.2 Power Output Specification.........................................................................................................................46
3.1.3 Power Consumption ....................................................................................................................................46
3.2 Environmental Characteristics ........................................................................................................................47
3.2.1 Environmental Specification........................................................................................................................47
3.2.2 RoHS Compliance ........................................................................................................................................47
3.2.3 Electrostatic Discharge................................................................................................................................47
3.3 Mechanical Characteristics .............................................................................................................................48
3.3.1 RZ/G1C SBC Mechanical Dimensions ..........................................................................................................48
4. ORDERING INFORMATION .......................................................................................................................... 49
5. APPENDIX I................................................................................................................................................. 50
5.1.1 RZ/G1C SPI Programmer Board...................................................................................................................50

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List of Figures
Figure 1: RZ/G1C SBC Block Diagram ..............................................................................................................................11
Figure 2: RZ/G1C CPU Simplified Block Diagram.............................................................................................................14
Figure 3: Boot Media Switch...........................................................................................................................................15
Figure 4: Micro SD Connector.........................................................................................................................................17
Figure 5: Gigabit Ethernet Connector .............................................................................................................................18
Figure 6: Dual USB 2.0 Host Connector...........................................................................................................................19
Figure 7: USB 2.0 Device Connector ...............................................................................................................................20
Figure 8: HDMI Connector ..............................................................................................................................................21
Figure 9: CVBS IN RCA Jack..............................................................................................................................................22
Figure 10: RTC Battery Connector...................................................................................................................................23
Figure 11: SPI Flash Programming Header......................................................................................................................24
Figure 12: JTAG Header...................................................................................................................................................25
Figure 13: Reset Switch...................................................................................................................................................27
Figure 14: Expansion Connector1 ...................................................................................................................................28
Figure 15: Expansion Connector2 ...................................................................................................................................32
Figure 16: Expansion Connector3 ...................................................................................................................................37
Figure 17: Power IN Connector.......................................................................................................................................45
Figure 18: Mechanical Dimension of RZ/G1C SBC - Top View ........................................................................................48
Figure 19: Mechanical Dimension of RZ/G1C SBC- Side View ........................................................................................48
Figure 20: RZ/G1C SPI Programmer Board......................................................................................................................50
List of Tables
Table 1: Acronyms & Abbreviations.................................................................................................................................. 7
Table 2: Terminology ........................................................................................................................................................9
Table 3: Boot Media Settings..........................................................................................................................................15
Table 4: RTC Battery Connector Pin Assignment ............................................................................................................23
Table 5: SPI Flash Programming Header Pin Assignment ...............................................................................................24
Table 6: JTAG Header Pin Assignment ............................................................................................................................26
Table 7: Expansion Connector1 Pin Assignment.............................................................................................................30
Table 8: Expansion Connector2 Pin Assignment.............................................................................................................35
Table 9: Expansion Connector3 Pin Assignment.............................................................................................................39
Table 10: RZ/G1C CPU IOMUX for Expansion Connector1 Interfaces ............................................................................40
Table 11: RZ/G1C CPU IOMUX for Expansion Connector2 Interfaces ............................................................................42
Table 12: RZ/G1C CPU IOMUX for Expansion Connector3 Interfaces ............................................................................44
Table 13: Power Input Requirement...............................................................................................................................45
Table 14: Power Output Specification ............................................................................................................................46
Table 15: Power Consumption........................................................................................................................................46
Table 16: Environmental Specification ...........................................................................................................................47
Table 17: Orderable Product Part Numbers ...................................................................................................................49

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
1. INTRODUCTION
1.1 Purpose
This document is the Hardware User Guide for the RZ/G1C Single Board Computer based on the Renesas’s RZ/G1C
Application processor. This board is fully supported by iWave Systems Technologies Pvt. Ltd. This guide provides
detailed information on the overall design and usage of the RZ/G1C SBC from a Hardware Systems perspective.
1.2 Overview
The RZ/G1C Single Board Computer is an extension of RZ/G1C CPU. SBC is an off-the-shelf board that integrates all
the core features of a common PC. RZ/G1C SBC has a form factor of 85mm x 56mm and provides the functional
requirements for an embedded application.
1.3 List of Acronyms
The following acronyms will be used throughout this document.
Table 1: Acronyms & Abbreviations
Acronyms
Abbreviations
ARM
Advanced RISC Machine
BPP
Bits Per Pixel
BSP
Board Support Package
CAN
Controller Area Network
CMOS
Complementary Metal-Oxide Semiconductor
CPU
Central Processing Unit
CVBS
Composite Video Signal
DDR3
Double Data Rate 3
eMMC
Enhanced Multi Media Card
GB
Giga Byte
GPIO
General Purpose Input Output
HSCIF
High Speed Serial Communication Interface with FIFO
I2C
Inter-Integrated Circuit
IC
Integrated Circuit
JTAG
Joint Test Action Group
Kbps
Kilobits per second
LVDS
Low Voltage Differential Signalling
MAC
Media Access Controller
MB
Mega Byte
Mbps
Megabits per sec
MHz
Mega Hertz
MSIOF
Clock-Synchronized Serial Interface with FIFO

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Acronyms
Abbreviations
PCB
Printed Circuit Board
PWM
Pulse Width Modulation
QSPI
Quad Serial Peripheral Interface
RTC
Real Time Clock
SBC
Single Board Computer
SCIF
Serial Communication Interface with FIFO
SD
Secure Digital
SDHI
SD Card Host Interface
SSI
Serial Sound Interface
SDRAM
Synchronous Dynamic Random Access Memory
UART
Universal Asynchronous Receiver/Transmitter
USB
Universal Serial Bus
USB OTG
USB On The Go

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1.4 Terminlogy Description
In this document, wherever Signal Type is mentioned, below terminology is used.
Table 2: Terminology
Terminology
Description
I
Input Signal
O
Output Signal
IO
Bidirectional Input/output Signal
CMOS
Complementary Metal Oxide Semiconductor Signal
DIFF
Differential Signal
LVDS
Low Voltage Differential Signal
OD
Open Drain Signal
OC
Open Collector Signal
Power
Power Pin
PU
Pull Up
PD
Pull Down
NA
Not Applicable
NC
Not Connected
Note: Signal Type does not include internal pull-ups or pull-downs implemented by the chip vendors and only includes
the pull-ups or pull-downs implemented On-SBC.
1.5 References
•RZ/G1C CPU Hardware User Manual

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1.6 Important Note
In this document, wherever CPU signal name is mentioned, it is followed as per below format for easy
understanding.
•If CPU pin has multiplexing option and selected particular function, then the signal name is mentioned as
“Selected Function Name (GPIO Number)”
Example: CAN0_RX_A(GP0_11)
In this signal, CAN0_RX is the functionality which we are using and GP0_11 is the GPIO number.
•If CPU pin has multiplexing option and selected as GPIO function, then the signal name is mentioned as
“GPIO (GPIO Number)”
Example: GPIO(GP4_8)
In this signal, GPIO is MUX functionality which we are using and GP4_8 is the GPIO number.
•If CPU pin doesn’t have multiplexing option, then the signal name is mentioned as,
“Function name”
Example: TXOUT0M
In this signal, functionality which we are using is LVDS TXOUT0M
Note: The above naming is not applicable for other signals which are not connected to CPU.

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iWave Systems Technologies Pvt. Ltd.
RZ/G1C SBC Hardware User Guide
2. ARCHITECTURE AND DESIGN
This section provides detailed information about the RZ/G1C SBC features and Hardware architecture with high level
block diagram. Also, this section provides detailed information about SBC Expansion connectors pin assignment and
usage.
2.1 RZ/G1C SBC Block Diagram
20Pin
Expansion
Connector
Dual Stack
RCA Jack /Header
(Optional)
Micro SD
Connector
Power
Regulators
CPU
RZ/G1C
Miniature JTAG
Connector
DDR3 –512MB
(Upgradable)
DDR3 (32bit) LVDSx1,CANx1,SSIx2,UARTx3,
I2Cx1,PWMx1,PRESETOUT#
I2C1, I2C4,
MSIOF2, SCIF2,
GPIOs
iW-RainboW-G23S - RZ/G1C SBC Block Diagram
eMMC –8GB
(Upgradable)
MMC(8bit)
DBSC MMC0
DU0, SSI6
HDMI
Transmitter
RGB (24bpp),I2S
HDMI
Connector
JTAG
SPI Flash-16MB
(Upgradable)
SPI & Reset
QSPI0
JTAG
USB0
USB MicroB
Connector
40Pin
Expansion
Connector2
LVDS, CAN0, I2C3
HSCIF1,2, SCIF5
SSI0/9,1, PWM0
Power IN Jack &
Optional 4Pin
Lockable Header
Power to On-Board
Peripherals
¹ Since EtherAVB collision detection signal is multiplexed
with VIN0 clock signal in CPU, EtherAVB collision
detection feature is not supported by default.
²40Pin Expansion Connector1 pinout is compatible with
RaspberryPi3 Connector
USB OTG
(as Device only)
RCA Jack
CVBS in
USB1
EtherAVB1Ethernet PHY
GMII RJ45
Magjack
USB2.0 HUB
(2 Ports)
USB Dual Stack
USB TypeA
Connector
Analog Video Input
CVBS Out
Camera(8bit),UART/I2C,
Debug UART & PWM VIN0, SCIF4/I2C0,
SCIF1, PWM2
SDHI2
Analog Video Output
5V, 3.3V
40Pin
Expansion
Connector1²
UART,SPI,
I2Cx2 & GPIOs
5V
Reset
Push button
Switch
PRESET#
Reset Input
SD (4bit)
5V
SPI Programming
Header –6Pin
RTC Controller
RTC Coin Cell
Header I2C3
5V, 3.3V
Boot Media
Switch MD1,MD2
Figure 1: RZ/G1C SBC Block Diagram

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2.2 RZ/G1C SBC Features
The RZ/G1C Single Board computer supports the following features.
CPU
•Renesas’RZ/G1C Dual ARM Cortex™-A7 MPCore™ cores @ 1GHz
Boot Switch
•Boot Media Setting Switch
Memory
•DDR3 SDRAM –512MB (Expandable Up to 2GB)
•SPI Flash - 16MB (Expandable)
•eMMC Flash - 8GB (Expandable)
•Micro SD Connector
Communication Features
•100/1000 Mbps Ethernet through RJ45 MagJack 1
•USB2.0 Host x 2 Ports through Dual Stack Type A Connector
•USB2.0 OTG as Device x 1 Port through MicroB Connector
Video Features
•HDMI x 1 Port through HDMI connector
•CVBS Video Input through RCA Jack 2
•CVBS Video Output through RCA Jack/Header (Optional) 2
Other Features
•RTC Controller with Coin Cell Connector
•SPI Flash Programming Header
•JTAG Header
•Reset Switch
Expansion Connector1 (40 Pin) Interfaces 3
•Data UART (without CTS & RTS) x 1
•SPI x1
•I2C x 2
•GPIOs (17nos)

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Expansion Connector2 (40 Pin) Interfaces
•LVDS x 1
•CAN x 1
•I2S Audio Interface (SSI) x 2
•DATA UART (with CTS & RTS) x 2
•DATA UART (without CTS & RTS) x 1
•I2C x 1
•PWM x 1
Expansion Connector3 (20 Pin) Interfaces
•Debug UART
•Data UART (without CTS & RTS)/I2C x 1
•Parallel Camera (VIN0 –8bit) x 1 Port 1
•PWM x 1
General Specification
•Power Input Jack:5V,2.5A
•Power Input Lockable Header (Optional)
•Form Factor : 85mm x 56mm
1 In RZ/G1C CPU, EtherAVB collision detection signal and VIN0 clock signal is multiplexed in same pin and so EtherAVB
collision detection is not supported by default.
2 RZ/G1C CPU supports one CVBS Video IN and one CVBS Video Out port. By default CVBS Video IN port is supported
on RZ/G1C SBC. To support CVBS Video Out port, contact iWave.
3Expansion connector1 pinout is compatible with Raspberry Pi3 connector pinout.

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2.3 RZ/G1C CPU
The RZ/G1C SBC is based on Renesas’s RZ/G1C CPU with built-in Dual ARM Cortex®-A7 MPCore® which can operate
up to 1 GHz/core. The Block Diagram of RZ/G1C CPU from Renesas’s website is shown below for reference.
Figure 2: RZ/G1C CPU Simplified Block Diagram
Note: Please refer the latest RZ/G1C Hardware User Manual for more details which may be revised from time to time.

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2.4 Boot Media Setting Switch
RZ/G1C SBC supports two positions Boot Media Switch (SW1) which is physically located in the top of the PCB. This
switch is used to select the boot media of RZ/G1C CPU. RZ/G1C SBC supports two boot media options for booting
RZ/G1C CPU as mentioned in the below table.
Figure 3: Boot Media Switch
Table 3: Boot Media Settings
Boot Media Setting On RZ/G1C SBC
SW1 (2 Position Switch)
POS1
POS2
Image
QSPI0 - SPI Flash
(Default)
ON
OFF
MMC0 - 8bit eMMC
OFF
ON

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2.5 Memory
2.5.1 DDR3 SDRAM
The RZ/G1C SBC supports 512MB DDR3 RAM memory by default. This is connected to CPU’s DBSC3 DDR3 controller
in 32bit x 1ch mode where it uses two 256MB DDR3-SDRAM ICs. This device operates at 1.5V voltage level. DDR3-
SDRAM ICs are physically located on top side of the SBC. The RAM size can be expandable up to maximum of 2GB.
2.5.2 SPI NOR Flash
The RZ/G1C SBC supports 16MB SPI NOR Flash as default boot device. This is connected to QSPI controller of the
RZ/G1C CPU and operates at 3.3 Voltage level. While RZ/G1C booting, boot program in the on-chip ROM starts up
the QSPI and SYS-DMAC channel 1, and transfers the loader program previously stored in the SPI Flash to the on-chip
RAM via the QSPI controller. After loader program is transferred, the program automatically jumps to the top
address of the loader program. The SPI flash memory is physically located on bottom side of the SBC.
To program the boot code in to the SPI flash (for the first time or if boot code is corrupted), use iWave’s RZ/G1C SPI
Programmer Board through SPI Flash Programming Header (J6) (or) JTAG debugger through JTAG Header (J14).
Optionally the external SPI programmer can be used for programming the SPI flash through SPI Flash Programming
Header (J6).
2.5.3 eMMC Flash
The RZ/G1C SBC supports 8GB eMMC Flash memory as mass storage. eMMC is directly connected to the MMC0
controller of the RZ/G1C CPU. It supports MMC 4.4.1 base, HS200 transfer modes upto 156 MHz and operating at
1.8V Voltage level. The eMMC flash memory is physically located on top side of the SBC. The memory size of the
eMMC Flash can be expandable.

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2.5.4 Micro SD Connector
The RZ/G1C SBC supports Micro SD connector which can be used to connect Micro SD card as Mass storage. Micro
SD card connector (J16) is directly connected to the SDHI2 controller of the RZ/G1C CPU. It supports Default, high-
speed and UHS-I/SDR50 transfer modes upto 78 MHz. It also supports card detect feature through RZ/G1C GPIO
“GP4_20”. The main power to Micro SD Card Connector is 3.3 Voltage.
The RZ/G1C SBC supports configurable IO voltage levels for SDHI2 lines which can be controlled through CPU GPIO
GP2_24. If GP2_24 is set to low, then 1.8V IO level is selected for SDHI2 lines. If GP2_24 is set to high, then 3.3V IO
level is selected for SDHI2 lines. Micro SD Connector is physically located on bottom side of the SBC as shown below.
Figure 4: Micro SD Connector

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2.6 Communication Features
2.6.1 100/1000 Mbps Ethernet Port
The RZ/G1C SBC supports 100/1000 Mbps Ethernet through RZ/G1C CPU’s EtherAVB interface. The MAC is
integrated in the RZ/G1C CPU and connected to the external Gigabit Ethernet PHY “KSZ9031MNX”. The Gigabit
Ethernet PHY output is directly to connected to RJ45 Magjack (J11).
RZ/G1C SBC also supports Activity (Yellow) and Link (Green) LED indications on RJ45 Magjack. The 100/1000 Mbps
Ethernet Connector is physically located on top side of the SBC as shown below.
Figure 5: Gigabit Ethernet Connector

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2.6.2 Dual USB 2.0 Host Ports
The RZ/G1C SBC supports two USB2.0 High Speed Host interface through RZ/G1C CPU’s USB1 controller. This USB1
controller with integrated PHY supports USB2.0 High-Speed (480 Mbps)/Full-Speed (12 Mbps)/Low-Speed (1.5 Mbps)
transfer. To support two USB2.0 Host interfaces, RZ/G1C CPU’s USB1 controller is interfaced with two-port USB hub
“USB2422”. This Hub output port1 & port2 is connected to USB Type A Dual stack connector (J8). This Dual Stack
Connector (J8) is physically located on top side of the SBC as shown below.
The VBUS power to the USB2.0 Host ports are connected through current limit power switch which limits the current
above 500mA. Also over current output & power enable input of the current limit power switch is connected to
corresponding USB HUB port’s control pins to control the USB ports VBUS power.
Figure 6: Dual USB 2.0 Host Connector

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2.6.3 USB 2.0 Device Port
The RZ/G1C SBC supports one USB2.0 Device interface through RZ/G1C CPU’s USB0 controller. This USB0 controller
with integrated PHY which supports USB2.0 High-Speed (480 Mbps)/Full-Speed (12 Mbps)/Low-Speed (1.5 Mbps)
transfer is directly connected to USB Micro B Connector (J15) and used in Function (Peripheral) mode. USB ID Pin
from Micro B Connector is connected to RZ/G1C CPU’s GPIO “GP0_1”pin. The Micro B Connector (J15) is physically
located on top side of the SBC as shown below.
Figure 7: USB 2.0 Device Connector