VARISCITE LTD VAR-AM43CustomBoard Datasheet Carrier-board for the VAR-SOM-AM43 V 1.1 © 2015 Variscite Ltd. All Rights Reserved. No part of this document may be photocopied, reproduced, stored in a retrieval system, or transmitted, in any form or by any means whether, electronic, Mechanical, or otherwise without the prior written permission of Variscite Ltd. 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 Variscite Ltd., its subsidiaries or employees for any direct or indirect loss or damage caused by omissions from or inaccuracies in this document. Variscite Ltd. reserves the right to change details in this publication without notice. Product and company names herein may be the trademarks of their respective owners. Variscite Ltd. 4, Hamelacha st. Lod. P.O.B 1121 Airport City, 70100 ISRAEL Phone +972 (9) 9562910 • Fax +972 (9) 9589477 Revision History Revision 1.0 Date 20/01/2015 Notes Initial Table of Contents Revision History......................................................................... iii Table of Contents ......................................................................iv List of Tables ............................................................................. 6 1 Overview .......................................................................... 7 1.1 2 General Information ............................................................... 7 1.1.1 Supporting Variscite Products ........................................................ 7 1.1.2 Supporting O.S ............................................................................... 7 1.1.3 Additional information ..................................................................... 7 1.2 VAR-AM43CustomBoard features summary .......................... 8 1.3 Block Diagram ........................................................................ 9 1.4 Board Layout ........................................................................ 10 1.5 VAR-AM43CustomBoard connectors ................................... 11 Detailed Description ....................................................... 12 2.1 Overview .............................................................................. 12 2.2 VAR-AM43CustomBoard Interfaces..................................... 13 2.2.1 2.3 VAR-SOM-AM43 .......................................................................... 13 Standard External Interfaces ................................................ 13 2.3.1 USB HOST & OTG ....................................................................... 13 2.3.2 uSD Card ...................................................................................... 14 2.3.3 Ethernet ........................................................................................ 14 2.3.4 AUDIO ........................................................................................... 16 2.3.5 RS232 (UART2) ............................................................................ 18 2.3.6 RS485 (UART2) & Dual CAN Bus ................................................ 18 2.3.7 Camera ......................................................................................... 19 2.3.8 LCD ............................................................................................... 21 2.3.9 Resistive/Capacitive Touch .......................................................... 21 2.3.10 USB - Debug ................................................................................. 22 2.3.11 Analog Inputs ................................................................................ 22 2.3.12 UART1 .......................................................................................... 23 2.3.13 UART3 .......................................................................................... 24 2.3.14 I2C/SPI.......................................................................................... 24 2.3.15 GPIO ............................................................................................. 25 2.4 3 User Interfaces ..................................................................... 26 2.4.1 Digital Microphone ........................................................................ 26 2.4.2 LED Indications ............................................................................. 26 2.4.3 Control Buttons ............................................................................. 26 2.4.4 Power Input ................................................................................... 26 Electrical Environmental Specifications .......................... 28 3.1 Absolute maximum electrical specifications ......................... 28 3.2 Operational electrical specifications ..................................... 28 4 Environmental specifications .......................................... 29 5 Legal notice .................................................................... 30 6 Warranty terms ............................................................... 31 7 Contact information ........................................................ 32 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 List of Tables Table 1-1 VAR-AM43CustomBoard connectors ............................................................ 11 Table 2-1 USB1 Host Connector Connector Pin-out (J4) ............................................... 13 Table 2-2 USB0 Host Connector Connector Pin-out (J3) ............................................... 13 Table 2-3 USB0 OTG connector Pin-out (J100) ............................................................ 14 Table 2-4 uSD Card slot Connector Pin-out (J103) ....................................................... 14 Table 2-5 10/100/100BaseT RJ45 Connector Pin-out (J4) ............................................ 15 Table 2-6 10/100/100BaseT RJ45 Connector Pin-out (J6) ............................................ 16 Table 2-7 RJ-45 Connector Led status (J5,J6) .............................................................. 16 Table 2-8 Headphone Jack Connector Pin-out (J17) ..................................................... 16 Table 2-9 Line In Jack Connector Pin-out (J18)............................................................. 17 Table 2-10 Digital AUDIO/SPI Header Pin-out (J21)...................................................... 17 Table 2-11 RS232 DTE Connector Pin-out (J8)............................................................. 18 Table 2-12 RS485 & Dual CAN Bus Connector Pin-out (J11)........................................ 19 Table 2-13 Camera Board Connector Pin-out (J13)....................................................... 19 Table 2-14 OV2659 Image-sensor Connector (J102) .................................................... 20 Table 2-15 Resistive LCD Connector Pin-out (J15) ....................................................... 21 Table 2-16 Capacitive Touch Panel Connector Pin-out (J7) .......................................... 22 Table 2-17 Resistive Touch Panel Connector Pin-out (J101) ........................................ 22 Table 2-18 USB – Debug Connector Pin-out (J22) ........................................................ 22 Table 2-19 Analog Inputs Header Pin-out (J10)............................................................. 23 Table 2-20 UART1 Header Pin-out (J14)....................................................................... 23 Table 2-21 UART3 Header Pin-out (J16)....................................................................... 24 Table 2-22 I2C/SPI Header Pin-out (J9) ........................................................................ 24 Table 2-23 GPIO Header Pin-out (J19) ......................................................................... 25 Table 2-24 GPIO Header Pin-out (J20) ......................................................................... 25 Table 2-25 Boot Select modes (SW1,SW2) ................................................................... 26 Table 2-26 DC-in Jack Pin-out (J9) ............................................................................... 27 Table 2-27 Pin Terminal Block (J2) ............................................................................... 27 Table 3-1 Absolute maximum electrical specifications ................................................... 28 Table 3-2 Operational electrical specifications............................................................... 28 Table 4-1 Environmental specifications ......................................................................... 29 6 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 1 Overview This chapter gives an overview of the VAR-AM43CustomBoard. 1.1 General Information The VAR-AM43CustomBoard is a complete development board, utilizing the VAR-SOM-AM43 System-on-Module’s features. It includes a large variety of interfaces and connectivity including a USB HOST& OTG, Dual 10/100/1000BaseT Ethernet, uSD slot,18 bit LVDS and HDMI Interface, Audio IN/OUT, Dual CAN Bus interface, serial interfaces and expansion connectors. The VAR-AM43CUstomBoard can be used not only as an evaluation and reference platform for the VAR-SOM-AM43, but also as a custom board for mass production. 1.1.1 Supporting Variscite Products VAR-SOM-AM43 Capacitive touch LCD screen 1.1.2 Supporting O.S Linux BSP 1.1.3 Additional information Board schematics as well as mechanical CAD data base is available to download at www.variscite.com, For further information contact Variscite support at mailto:[email protected]. 7 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 1.2 VAR-AM43CustomBoard features summary SODIMM DDR3 204PIN socket Display o Touch panel interface o Capacitive - I2C based o Resistive 4-wIre Dual Ethernet o 18 bit LVDS Header supporting Variscite’s 7” TFT capacitive touch LCD 2x 10/100/1000BaseT – RJ45 USB o USB2.0 OTG ,Micro AB type + Type A (for Host only option) o USB2.0 Host Type A AUDIO o 3.5mm Headphones jack o 3.5mm Line in jack o Stereo Digital Microphone µSD-Card slot UART o RS232 levels- Standard 10 pin Header o RS485 levels- Standard 10 pin Header Dual CAN Bus o Debug o 2x 1Mbit CAN bus interface - Standard 10 pin Header USB debug (UART0) - Micro AB type Camera o 12 bit Camera Header o OV2659 Image-sensor Interface Expansion connectors: o UART o I2C o SPI o A/D (8-channel) 8 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D o McASP o GPIOs R E V 1 . 1 Additional o D A T A S H E E T General purpose LEDS, Buttons Power o 5V DC Input. - 2.0mm DC jack o RTC Backup battery - CR1225 Battery Holder 1.3 Block Diagram VAR-AM43CustomBoard uSD Ext. connector Ext. connector Camera1 5V 5V DC JACK/ Terminal LVDS Ext. connector Sysboot Boot Sel Button ADC0 (8ch) TSC (ch 0-7) Ext. connector McASP0/SPI1 McASP0/SPI1 Ext. connector McASP1 TSC (ch 0-3) FFC/FPC POWER 3.3V DC-DC 24bit LCDCtrl (WXGA) 18 bit LVDS Serializer Parallel Camera1 Camera1 CAN0 CAN Transceiver RX0/TX0 CAN0 CAN1 CAN Transceiver RX1/TX1 CAN1 RS485 Transceiver RS232 Transceiver USB to UART RS485 Ext. connector USB Type Micro-AB Ext. connector Ext. connector SD/MMC MMC0 OV2659 Module VAR-SOM-AM43 RS232 USB UART2 UART0 (Debug) UART UART1 UART3 FFC/FPC I2C1 Ext. connector I2C0, I2C1 Audio Codec I2C Line Out Audio AMP Line In SPI SPI2 ` Buttons/ Leds Ext. connector Headphones GPIO GPIOs RTC BAT RTC USB Type- A Reset USB Type Micro-AB USB OTG/HOST USB Type- A USB HOST Stereo Jack Stereo Jack Dmic Digital Mic RX/TX + LEDs RJ45 EMAC0 RGMII1 I2C1 Gb ETH PHY System Ctrl USB 2.0 OTG + PHY (x2) 9 JTAG Ext. connector EMAC1 RGMII2 Gb ETH PHY RX/TX + LEDs RJ45 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 1.4 Board Layout The VAR-AM43CustomBoard physical dimensions are 111x87 mm. Detailed CAD files are available for download at www.variscite.com. Top side - Detailed View 10 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 1.5 VAR-AM43CustomBoard connectors The below table lists all available connectors on the VAR-AM43CustomBoard, refer to chapter 2 for a more detailed description and Pin-out of each connector. Reference Function Type J1 VAR-SOM-AM43 Connector SODIMM DDR3 204 Pin Socket J2 Power In 2 Pin Terminal Block J3 USB0 Host USB Type A J4 USB1 Host USB Type A J5 10/100/1000Mbps Port RJ-45 J6 10/100/1000Mbps Port RJ-45 J7 Capacitive Touch Panel I/F FFC/FPC 6-pin J8 RS232 Header SMT, 5x2, 2.54mm J9 I2C/SPI Header SMT, 5x2, 2.54mm J10 Analog Inputs Header, 5x2, 2.54mm J11 RS485, Dual CAN Bus Header SMT, 5x2, 2.54mm J12 Power In DC In Jack 2.0 mm J13 Camera Board Header Header SMT, 12x2, 2.54mm J14 UART1 Header SMT, 5x2, 2.54mm J15 LVDS Header Header SMT, 10x2, 2.54mm J16 UART3 Header SMT, 5x2, 2.54mm J17 Headphones Audio Jack 3.5 mm J18 Line In Audio Jack 3.5 mm J19 GPIOs Header, 5x2, 2.54mm J20 GPIOs Header, 5x2, 2.54mm J21 Digital Audio/SPI Header, 5x2, 2.54mm J22 USB Debug USB Type micro AB J100 USB0 OTG USB Type micro AB J101 Resistive Touch Panel I/F FFC/FPC 4-pin J102 OV2659 mage sensor I/F FFC/FPC 24-pin J103 SD/MMC uSD Connector JBT100 RTC Battery Holder Table 1-1 VAR-AM43CustomBoard connectors 11 CR1225 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2 Detailed Description 2.1 Overview This chapter details the VAR-AM43CustomBoard features and external interfaces, some of which are driven directly by the VAR-SOM-AM43. Please refer to the VAR-SOM-AM43 data sheet for more information regarding those interfaces. The following list describes this chapter table’s column header: Pin#: Pin Number of the specific connector VAR-AM43CustomBoard Signal: VAR-AM43CustomBoard schematic signal name Type: Pin Type & Direction: I – In O – Out DS – Differential Signal P – Power A – Analog Description: Short Pin functionality description 12 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.2 VAR-AM43CustomBoard Interfaces 2.2.1 VAR-SOM-AM43 The VAR-SOM-AM43 features a standard SODIMM DDR3 204 Pin Socket to connect with the VAR-SOM-AM43 System-om-module. Please refer to the VAR-SOM-AM43 module data sheet for a complete signal description and pin-out. 2.3 Standard External Interfaces 2.3.1 USB HOST & OTG The VAR-SOM-AM43 drives USB1 driven to a HOST Connector, USB0 is driven to both HOST and OTG connectors. For using USB0 as HOST only via HOST connector configure USB0 to HOST mode by setting resistor R102 value to 0R 2.3.1.1 USB1 HOST Connector Pin-out (J4) Pin # VAR-AM43CustomBoard Signal Type Description 1 VCC_USB1 P 5V power supply. 500ma max 2 AM437X_USB1_DM_C DSI/O USB Data Negative 3 AM437X_USB1_DP_C DSI/O USB Data Positive 4 DGND P Digital ground Table 2-1 USB1 Host Connector Connector Pin-out (J4) 2.3.1.2 USB0 HOST Connector Pin-out (J3) Pin # VAR-AM43CustomBoard Signal Type Description 1 OTG_VBUS P 5V power supply. 500ma max 2 AM437X_USB0_DM_C DSI/O USB Data Negative 3 AM437X_USB0_DP_C DSI/O USB Data Positive 4 DGND P Digital ground Table 2-2 USB0 Host Connector Connector Pin-out (J3) 13 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.1.3 USB0 OTG Connector Pin-out (J100) Pin # VAR-AM43CustomBoard Signal Type 1 OTG_VBUS P 2 AM437X_USB0_DM_C DSI/O 3 AM437X_USB0_DP_C DSI/O 4 AM437X_USB0_ID I 5 DGND P Table 2-3 USB0 OTG connector Pin-out (J100) Description 5V in/out (Client/host) USB Data Negative USB Data Positive USB OTG ID signal (‘1’ - Device mode) Digital ground 2.3.2 uSD Card uSD Card interface is driven by the SD/MMC0 interface of the of the VAR-SOM-AM43. Refer to the VAR-SOM-AM43 module data sheet for a complete interface description. 2.3.2.1 uSD card slot Connector Pin-out (J103) Pin # VAR-AM43CustomBoard Signal Type 1 AM437X_MMC0_DAT2 IO 2 AM437X_MMC0_DAT3 IO 3 AM437X_MMC0_CMD IO 4 BASE_PER_3V3 P 5 AM437X_MMC0_CLK O 6 DGND P 7 AM437X_MMC0_DAT0 IO 8 AM437X_MMC0_DAT1 IO 9 AM437X_MMC0_SDCD IO 10 DGND P 11 DGND P 12 DGND P 13 DGND P Table 2-4 uSD Card slot Connector Pin-out (J103) Description MMC Parallel Data2 MMC Parallel Data3 MMC command Peripherals Power supply 3.3V MMC Clock Digital ground MMC Parallel Data0 MMC Parallel Data1 MMC Card Detect Digital ground Digital ground Digital ground Digital ground 2.3.3 Ethernet Two Gigabit Ethernet interfaces are exposed to two standard RJ45 Ethernet jack connectors with integrated magnetics. One port is driven by an On-SOM Gigabit Ethernet PHY, the other by an On-Carrier Gigabit Ethernet PHY connected to the VAR-SOM-AM43 RGMII2 Interface. The RGMII2 interface is available only when no Wi-Fi module is assembled on the VAR-SOM-AM43. Please refer to the VAR-SOM-AM43 datasheet for more information. 14 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.3.1 10/100/1000BaseT Connector Pin-out (J5) Pin # VAR-AM43CustomBoard Signal Type R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 L1 L2 MDI_A_P MDI_A_M MDI_B_P MDI_B_M TRCT1 TRCT2 MDI_C_P MDI_C_M MDI_D_P MDI_D_M DGND DSI/O DSI/O DSI/O DSI/O O O DSI/O DSI/O DSI/O DSI/O P O Description Bi-directional pair A positive Bi-directional pair A negative Bi-directional pair B positive Bi-directional pair B negative O O Bi-directional pair C positive Bi-directional pair C negative Bi-directional pair D positive Bi-directional pair D negative Digital ground Activity LED Anode LED_ACT (see LED Status Table) L3 IO Link 10/100 LED Anode; Link 1000 LED Cathode LED_LINK_10_100 (see LED Status Table) L4 IO Link 1000 LED Anode; Link 10/100 LED Cathode LED_LINK_1000 (see LED Status Table) SH1 EARTH P EARTH SH2 EARTH P EARTH Table 2-5 10/100/100BaseT RJ45 Connector Pin-out (J4) 2.3.3.2 10/100/1000BaseT Connector Pin-out (J6) Note: This interface is available only when no Wi-Fi module is assembled on the VAR-SOM-AM43. Please refer to the VAR-SOM-AM43 datasheet for more information. Pin # VAR-AM43CustomBoard Signal Type Description R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 L1 TRXP_0 TRXM_0 TRXP_1 TRXM_1 TRCT1 TRCT2 MDI_2_P MDI_2_M MDI_3_P MDI_3_M DGND DSI/O DSI/O DSI/O DSI/O O O DSI/O DSI/O DSI/O DSI/O P Bi-directional pair 0 positive Bi-directional pair 0 negative Bi-directional pair 1 positive Bi-directional pair 1 negative O O Bi-directional pair 2 positive Bi-directional pair 2 negative Bi-directional pair 3 positive Bi-directional pair 3 negative Activity LED Cathode 15 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T L2 R E V 1 . 1 O Activity LED Anode (see LED Status Table) L3 IO Link 10/100 LED Anode; Link 1000 LED Cathode LED_LINK_10_100_PHY2 (see LED Status Table) L4 IO Link 1000 LED Anode; Link 10/100 LED Cathode LED_LINK_1000_PHY2 (see LED Status Table) SH1 EARTH P EARTH SH2 EARTH P EARTH Table 2-6 10/100/100BaseT RJ45 Connector Pin-out (J6) LED_ACT_PHY2 STATUS 10M Link 100M 10M Link LED Active LED_LINK_10_100 OFF OFF ON LED_LINK_1000 OFF OFF OFF LED_ACT ON BLINK ON Table 2-7 RJ-45 Connector Led status (J5,J6) 100M 1000M 1000M Active Link Active ON OFF BLINK OFF ON ON OFF ON BLINK 2.3.4 AUDIO The VAR-AM43CustomBoard features two 3.5mm jacks for audio interfaces. Headphone Line in The Headphones Jack is driven by an on-board Headphones amplifier using the Line Out signal received by the VAR-SOM-AM43. The Line in Jack is driven directly by the VAR-SOM-AM43. Additional McASP Audio interface signals are exposed through the Digital Audio/SPI Header. (Please refer to the VAR-SOM-AM43 module data sheet for a complete interface description). The VAR-AM43CustomBoard also features an on-board stereo Digital Microphone, Please refer to Digital Microphone section 2.4.1 for more details. 2.3.4.1 Headphone jack Connector Pin-out (J17) Pin # VAR-AM43CustomBoard Signal Type Description 1 DGND P Digital ground 2 HPOUTL O Headphone out left 3 HPOUTR O Headphone out right Table 2-8 Headphone Jack Connector Pin-out (J17) 16 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.4.2 Line In jack Connector Pin-out (J18) Pin # VAR-AM43CustomBoard Signal Type 1 AGND_AUD AP 2 LINEIN_LP_C AI 3 LINEIN_RP_C AI Table 2-9 Line In Jack Connector Pin-out (J18) Description Audio Ground Line in Left input Line in Right input 2.3.4.3 Digital AUDIO/SPI Header (J21) The McASP Digital audio interface is shared with the WiFi module on SOM and cannot be used simultaneously. Pin # VAR-AM43CustomBoard Type Description Signal 1 2 3 BASE_PER_3V3 MCASP0_ACLKR MCASP0_ACLKX_ SPI1_SCLK P IO IO 4 5 MCASP0_AHCLKX MCASP0_AHCLKR_ SPI1_CS0 IO IO 6 7 MCASP0_AXR1 MCASP0_AXR0/ SPI1_D1 IO IO 8 9 MCASP0_FSR MCASP0_FSX/ SPI1_D0 IO IO 10 DGND P Table 2-10 Digital AUDIO/SPI Header Pin-out (J21) Peripherals Power supply 3.3V McASP0 Receive Bit Clock McASP0 Transmit Bit Clock SPI1 Clock see note (*) McASP0 Transmit Master Clock McASP0 Receive Master Clock SPI1 Chip select see note (*) McASP0 Serial Data (IN/OUT) McASP0 Serial Data (IN/OUT) SPI1 Data 1 see note (*) McASP0 Receive Frame Sync McASP0 Transmit Frame Sync SPI1 Data 0 see note (*) Digital ground Note: (*)The signal is multiplexed and can be used alternatively for SPI1 interface purposes. 17 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.5 RS232 (UART2) The VAR-SOM-AM43 exports the UART2 interface to the VAR-AM43CustomBoard. UART2 can be selected to drive an on-board RS232 Transceiver exported to a standard 5x2 pin Header or an on-board RS485 Transceiver exported to a standard 5x2 pin Header. 2.3.5.1 RS232 - Connector Pin- out (J8) Pin # 1 2 3 4 5 6 7 8 9 10 VAR-AM43CustomBoard Signal Type Description RS232_RXD RS232_TXD BASE_PER_3V3 DGND I O P P UART2 Receive UART2 Transmit Peripherals Power supply 3.3V Digital Ground Table 2-11 RS232 DTE Connector Pin-out (J8) 2.3.6 RS485 (UART2) & Dual CAN Bus The VAR-SOM-AM43 exports the UART2 interface to the VAR-AM43CustomBoard. UART2 can be selected to drive an on-board RS232 Transceiver exported to a standard 5x2 pin Header or an on-board RS485 Transceiver exported to a standard 5x2 pin Header. In addition, the VAR-AM43CustomBoard drives two CAN Bus interfaces through two On-board CAN Bus Transceivers. The RS485 interface and Dual CAN Bus interface are exported to a Header. 2.3.6.1 RS485 & Dual CAN Bus Connector Pin- out (J11) Pin # VAR-AM43CustomBoard Signal Type Description 1 2 3 4 5 6 7 8 B A Z Y DGND DGND CANL0 CANH0 DSI DSI DSO DSO P P DSI/O DSI/O Receiver Differential Inverting signal Receiver Differential non Inverting signal Driver Differential Inverting signal Driver Differential non Inverting signal Digital Ground Digital Ground CAN0 L Differential signal CAN0 H Differential signal 18 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 DSI/O CAN1 L Differential signal CANL1 DSI/O CAN1 H Differential signal CANH1 Table 2-12 RS485 & Dual CAN Bus Connector Pin-out (J11) 9 10 2.3.7 Camera The VAR-AM43CustomBoard has a standard 10x2 2.54mm pitch Header exporting a 12 bit parallel camera interface. In addition, the camera interface is exported to standard 24-pin FFC/FPC connector for interfacing an 8 bit OV2659 Image-sensor module. Note: The same camera interface is exported to both connectors therefore they cannot be used simultaneously. Camera Connector Pin-out (J13) Pin # VAR-AM43CustomBoard Signal Type 1 BASE_PER_5V P 2 CAM1_VSYNC O 3 CAM1_DATA0 I 4 CAM1_HSYNC O 5 CAM1_DATA1 I 6 CAM1_DATA6 I 7 CAM1_DATA2 I 8 CAM1_DATA7 I 9 CAM1_PCLK I 10 CAM1_DATA8 I 11 DGND P 12 DGND P 13 CAM1_DATA3 I 14 CAM1_DATA9 I 15 CAM1_DATA4 I 16 CAM1_FIELD_GPIO4_12 IO 17 CAM1_DATA5 I 18 CAM1_DATA10 I 19 CAM1_WEN_GPIO4_13 IO 20 CAM1_DATA11 I 21 DGND P 22 I2C0_SCL IO 23 CAM1_SRCCLK I 24 I2C0_SDA IO Table 2-13 Camera Board Connector Pin-out (J13) 19 Description Camera 5V power supply Camera Vertical sync Camera data bit0 Camera Horizontal sync Camera data bit1 Camera data bit6 Camera data bit2 Camera data bit7 Camera Pixel clock Camera data bit8 Digital ground Digital ground Camera data bit3 Camera data bit9 Camera data bit4 Camera Field Indicator Camera data bit5 Camera data bit10 Camera data Write Enable Camera data bit11 Digital ground Camera I2C Camera Clock Camera I2C Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.7.1 OV2659 Image-sensor Connector (J102) Pin # VAR-AM43CustomBoard Signal Type Description 1 2 AGND_SENS A Analog Ground 3 SENSOR_SIO_D IO Sensor I2C Data 4 BASE_PER_2V8A P Sensor Analog Power supply 2.8V 5 SENSOR_SIO_C O Sensor I2C Clock 6 SENSOR_RESET O Sensor reset 7 SENSOR_VSYNC I Sensor Vertical sync 8 SNS PWDN O Sensor Power Down 9 SENSOR_HREF I Sensor Horizontal sync 10 BASE_PER_1V5 P Sensor core Power supply 1.5V 11 BASE_PER_2V8 P Sensor Digital Power supply 2.8V 12 SENSOR_Y9 I Sensor Data bit9 13 SENSOR_XCLK O Camera Clock 14 SENSOR_Y8 I Sensor Data bit8 15 DGND P Digital Ground 16 SENSOR_Y7 I Sensor Data bit7 17 SENSOR_PCLK I Sensor Pixel Clock 18 SENSOR_Y6 I Sensor Data bit6 19 SENSOR_Y2 I Sensor Data bit2 20 SENSOR_Y5 I Sensor Data bit5 21 SENSOR_Y3 I Sensor Data bit3 22 SENSOR_Y4 I Sensor Data bit4 23 24 Table 2-14 OV2659 Image-sensor Connector (J102) 20 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.8 LCD The VAR-SOM-AM43 exposed an 18-bit LCD interface to an on Board TI SN75LVDS83B LVDS transmitter. The LVDS interface is exposed through a standard 20 pin Header for connecting to Variscite’s 7” Capacitive touch LCD screen. 2.3.8.1 LCD Connector Pin-out (J15) Pin # VAR-AM43CustomBoard Signal Type 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 BASE_PER_3V3 P BASE_PER_3V3 P DGND P DGND P RXIN0DSO RXIN0+ DSO DGND P RXIN1DSO RXIN1+ DSO DGND P RXIN2DSO RXIN2+ DSO DGND P CLKINDSO CLKIN+ DSO DGND P BASE_PER_5V P BASE_PER_5V P AM437X_LCD_BACKLIG O HT 20 DGND P Table 2-15 Resistive LCD Connector Pin-out (J15) Description Peripherals Power supply 3.3V Peripherals Power supply 3.3V Digital ground Digital ground LVDS lane 0, negative signal LVDS lane 0, positive signal Digital ground LVDS lane 1, negative signal LVDS lane 1, positive signal Digital ground LVDS lane 2, negative signal LVDS lane 2, positive signal Digital ground LVDS clock, negative signal LVDS clock, positive signal Digital ground VLED +5V Power supply VLED +5V Power supply Backlight brightness control Digital ground 2.3.9 Resistive/Capacitive Touch The VAR-SOM-AM43 provides a Capacitive Touch interface I2C based exposed to a FFC/FPC connector for connecting to Variscite’s standard 7” Capacitive touch LCD screen. The VAR-SOM-AM43 also exposes a 4-wire Resistive Touch to a FFC/FPC connector. 2.3.9.1 Capacitive Touch Panel Connector Pin-out (J7) Pin # VAR-AM43CustomBoard Signal Type Description 1 2 RESET I2C1_SDA O IO Reset signal I2C1 data signal 21 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 3 I2C1_SCL O I2C1 data clock 4 GPIO4_29 I Interrupt signal connected to GPIO4[29] 5 BASE_PER_3V3 P Peripherals Power supply 3.3V 6 DGND P Digital ground Table 2-16 Capacitive Touch Panel Connector Pin-out (J7) 2.3.9.2 Resistive Touch Panel Connector Pin-out (101) Pin # VAR-AM43CustomBoard Signal Type Description 1 AM437X_AIN3 AI Analog In 3 2 AM437X_AIN1 AI Analog In 1 3 AM437X_AIN2 AI Analog In 2 4 AM437X_AIN0 AI Analog In 0 5 DGND P Digital ground 6 DGND P Digital ground Table 2-17 Resistive Touch Panel Connector Pin-out (J101) Note: Touch panel interface can be used only when Analog In signals are not used by the Analog Inputs Header (J10). Please refer to section Analog Inputs section 2.3.12 for more details. 2.3.10 USB - Debug The debug UART0 interface is driven by the VAR-SOM-AM43 to the VAR-AM43CustomBoard on-board UART-to-USB Bridge and then exposed to a Micro USB connector. 2.3.10.1 USB -Debug Connector Pin-out (J22) Pin # VAR-AM43CustomBoard Signal Type 1 DEBUG_VBUS P 2 USB_DEBUG_DM_C DSI/O 3 USB_DEBUG_DP_C DSI/O 4 DGND P 5 DGND P Table 2-18 USB – Debug Connector Pin-out (J22) Description 5V power input USB Data Negative USB Data Positive Digital ground Digital ground 2.3.11 Analog Inputs The VAR-AM43CustomBoard consists of an Analog Inputs header connecting 8 Analog inputs directly to the VAR-SOM-AM43’s ADC0 analog to digital channel. 22 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.11.1 Analog Inputs Header (J10) Pin # VAR-AM43CustomBoard Signal Type 1 ADC0_VREFP P 2 AM437X_AIN4 AI 3 AM437X_AIN0 AI 4 AM437X_AIN5 AI 5 AM437X_AIN1 AI 6 AM437X_AIN6 AI 7 AM437X_AIN2 AI 8 AM437X_AIN7 AI 9 AM437X_AIN3 AI 10 ADC0_VREFN P Table 2-19 Analog Inputs Header Pin-out (J10) Description ADC0 Power Reference Analog Input 0 Analog Input 4 Analog Input 1 Analog Input 5 Analog Input 2 Analog Input 6 Analog Input 3 Analog Input 7 ADC0 ground Reference Note: Analog inputs 0-3 are multiplexed with the Resistive Touch interface and cannot be used simultaneously. 2.3.12 UART1 The VAR-AM43CustomBoard exposes the VAR-SOM-AM43 UART1 interface through a standard 10 pin Header. 2.3.12.1 UART1 Header Pin-out (J14) Pin # 1 2 3 4 5 6 7 8 9 VAR-AM43CustomBoard Signal Type Description AM437X_DCAN1_TX/ UART1_RXD AM437X_DCAN1_RX/ UART1_TXD BASE_PER_3V3 DGND I UART1 Receive O UART1 Transmit P P Peripherals Power supply 3.3V Digital ground AM437X_DCAN0_TX/ UART1_CTS AM437X_DCAN0_RX/ UART1_RTS I UART1 CTS O UART1 RTS 10 Table 2-20 UART1 Header Pin-out (J14) Note: UART1 signals are multiplexed with CAN0 and CAN1 interface and cannot be used simultaneously. 23 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.13 UART3 The VAR-AM43CustomBoard exposes the VAR-SOM-AM43 UART3 interface through a standard 10 pin Header. 2.3.13.1 UART3 Header Pin-out (J16) Pin # VAR-AM43CustomBoard Signal Type 1 2 UART3_RXD_CON I 3 UART3_TXD_CON O 4 BASE_PER_3V3 P 5 DGND P 6 7 8 UART3_CTS_CON I 9 UART3_RTS_CON O 10 Table 2-21 UART3 Header Pin-out (J16) Description UART3 Receive UART3 Transmit Peripherals Power supply 3.3V Digital ground UART3 CTS UART3 RTS Note: UART3 is available only when no WiFi module is assembled on the VAR-SOM-AM43. Please refer to the VAR-SOM-AM43 datasheet for more information. 2.3.14 I2C/SPI The VAR-AM43CustomBoard exposes the VAR-SOM-AM43 I2C/SPI interface through a standard 10 pin Header. SPI Interface can be configured to Master/Slave mode Please refer to the VAR-SOM-AM43 datasheet for complete interface description. 2.3.14.1 I2C/SPI Header Pin-out (J9) Pin # VAR-AM43CustomBoard Signal 1 BASE_PER_3V3 2 SPI2_SCLK 3 I2C0_SCL 4 SPI2_D0 5 I2C0_SDA 6 SPI2_D1 7 I2C1_SCL 8 SPI2_CS0 9 I2C1_SDA 10 DGND Table 2-22 I2C/SPI Header Pin-out (J9) Type Description P IO IO IO IO IO IO IO IO P Peripherals Power supply 3.3V SPI2 Clock I2C0 Clock SPI2 Data 0 I2C0 Data SPI2 Data 1 I2C1 Clock SPI2 Chip select I2C1 Data Digital ground 24 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.3.15 GPIO The GPIO expansion connector pins are directly connected to the VAR-SOM-AM43. 2.3.15.1 GPIO Extension Header Pin-out (J19) Pin # VAR-AM43CustomBoard Signal 1 BASE_PER_3V3 2 GPIO2_3 3 GPIO1_13 4 GPIO2_4 5 GPIO1_12 6 GPIO2_5 7 GPIO0_31 8 GPIO2_2 9 GPIO0_30 10 DGND Table 2-23 GPIO Header Pin-out (J19) Type Description P IO IO IO IO IO Peripherals Power supply 3.3V General Purpose IO, see note (*) General Purpose IO, see note (**) General Purpose IO, see note (*) General Purpose IO, see note (**) General Purpose IO, see note (*) General Purpose IO, see note (*)(**) General Purpose IO, see note (*) General Purpose IO, see note (*)(**) Digital ground IO P Note: (*)The signal is multiplexed with NAND interface and cannot be used with the on SOM NAND simultaneously. (**)The signal is referenced to 1.8V rail. 2.3.15.2 GPIO Expansion Header Pin-out (J20) Pin # VAR-AM43CustomBoard Signal 1 BASE_PER_3V3 2 GPIO1_4 3 GPIO1_0 4 GPIO1_5 5 GPIO1_1 6 GPIO1_6 7 GPIO1_2 8 GPIO1_7 9 GPIO1_3 10 DGND Table 2-24 GPIO Header Pin-out (J20) Type Description P IO IO IO IO IO IO IO IO P Peripherals Power supply 3.3V General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) General Purpose IO, see note (*) Digital ground Note: (*)The signal is multiplexed with NAND interface and cannot be used with the on SOM NAND simultaneously. 25 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.4 User Interfaces 2.4.1 Digital Microphone U2, U3 are on board Digital Microphones L/R connected directly to VAR-SOM-AM43 Digital Audio lines. 2.4.2 LED Indications 2.4.2.1 Power-On LED (D1) D1 indicates that the 5V DC_IN power rail of the VAR-AM43CustomBoard is on. 2.4.2.2 GP LEDs (D2, D3) D5, D6 are General purpose functionality LEDs controlled by VAR-SOM-AM43 GPIOs. 2.4.3 Control Buttons 2.4.3.1 User Buttons (SW4, SW5, and SW6) SW4, SW5, and SW6 are User Buttons connected to the VAR-SOM-AM43 GPIOs for general purpose. In android release they can be used for: Menu, Home & Back Buttons respectively. 2.4.3.2 Boot Select (SW1, SW2) The Boot select switch SW1, SW2 set the VAR-SOM-AM43’s boot source & sequence. Refer to the VAR-SOM-AM43 module data sheet for a detailed description. SW1 Position SW2 Position Boot Source OFF OFF Boot from Internal NAND (In Future) ON OFF External MMC OFF ON Internal eMMC ON ON Internal eMMC Table 2-25 Boot Select modes (SW1,SW2) 2.4.3.3 Reset Button (SW3) SW3 is the System hardware-reset button. 2.4.4 Power Input The VAR-AM43CustomBoard is powered by a +5 V power supply, using a DC-in power jack compatible with a standard 2.0 mm power plug or a 2-Pin Terminal Block. 26 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 2.4.4.1 DC-in Jack Pin-out (J9) Pin # VAR-AM43CustomBoard Signal 1 DGND 2 DGND 3 DC_IN 4 DC_IN Table 2-26 DC-in Jack Pin-out (J9) Type Description P P P P Digital ground Digital ground 5V power input 5V power input Type Description P P Digital ground 5V power input 2.4.4.2 2 Pin Terminal Block (J2) Pin # VAR-AM43CustomBoard Signal 1 DGND 2 DC_IN Table 2-27 Pin Terminal Block (J2) 2.4.4.3 RTC Backup Battery (JBT100) The VAR-AM43CustomBoard features a CR1225 battery holder for powering an on board RTC communicating with the VAR-SOM-AM43 via I2C. 27 Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 3 Electrical Environmental Specifications 3.1 Absolute maximum electrical specifications Min -0.3V Max 6 Main Power supply, DC-IN Table 3-1 Absolute maximum electrical specifications 3.2 Operational electrical specifications Min 4.8V Main Power supply, DC-IN Table 3-2 Operational electrical specifications 28 Max 5.2V Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 4 Environmental specifications Commercial operating temperature range MTBF Shock resistance Relative humidity, Operational Relative humidity, Storage Vibration Table 4-1 Environmental specifications 29 Min 00C > 10000hrs 50G / 20 ms 10% 5% 20G / 0 - 600 Hz Max +700C 90% 95% Data Sheet Rev1.0 V A R - A M 4 3 C U S T O M B O A R D D A T A S H E E T R E V 1 . 1 5 Legal notice Variscite LTD (“Variscite”) products and services are sold subject to Variscite’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. 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