VAR-SP8CustomBoard Datasheet Carrier-board for the SPEAR-MX8 V 1.x
46Pages

VAR-SP8CustomBoard Data Sheet Page, 1

VAR-SP8CustomBoard Datasheet © 2019 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...

Document Revision History VAR-SP8CustomBoard Data Sheet Page, 3

VAR-SP8CustomBoard Data Sheet Page, 5

1 Overview 1.1 General Information The VAR-SP8CustomBoard is a complete development board, utilizing all of the SPEAR-MX8 System-on-Module’s features. It is assembled with large variety of user and debug interfaces, enabling it to serve as both a complete development kit or as a stand-alone end-product. Supporting Variscite products SPEAR-MX8 7” Capacitive touch LCD Supporting O.S Linux Android Additional information Board schematics as well as mechanical CAD data base is available to download at www.variscite.com, SW support information can be found: http://variwiki.com/ For further...

Quad DF40C-90DS-0.4V(51) Connectors, compatible with the SPEAR-MX8 SOM Display o 2x 18-bit LVDS Interface supporting Variscite’s 7” TFT capacitive touch LCD o o HDMI 2.0a Display Port 1.3/ eDP 1.4 Touch panel interface o Capacitive - I2C based o Mini PCIe Micro SATA connector USB3.0/2.0 OTG Type C USB2.0 OTG Type Micro USB 2x USB2.0 Host Type A AUDIO o 3.5mm Headphones jack o o 3.5mm Line in jack Digital Microphone Micro SD-Card slot Camera o Serial interface – MIPI CSI x4 lanes (Via Extension Card) o HDMI-In Interface micro HDMI connector USB debug - Type Micro AB ISL12057 Chip

12V DC Input. - 2.0mm DC jack / 2 pin Terminal Block 5V,3.3V DC Out – 2 pin Header SATA Power 5V, DC Out – 2 pin Header FAN Power RTC Backup battery - CR1225 Battery Holder

uHDMI Connector Board to Board Conn. Dual Serial Camera HDMI Connector PCIe Clock Generator Mini-PCIe Socket Resistive Touch Controller Stereo Jack Audio Codec User buttons Line In Buttons Boot, Reset, On/Off Stereo Jack SATA Connector System Ctrl VAR-SP8CustomBoard Data Sheet Page, 10

1.4 Board Layout The VAR-SP8CustomBoard’s physical dimensions are 169.93 x 119.89 mm. Detailed CAD files are available for download at www.variscite.com. VAR-SP8CustomBoard Data Sheet Page, 11

1.5 VAR-SP8CustomBoard connectors The below table lists all available connectors on the VAR-SP8CustomBoard, Refer to chapter 2 for a more detailed description and Pin-out of each connector. Table 1‐1 VAR‐SP8CustomBoard connectors Reference Function SATA Connector Micro SATA SATA Power Connector Header 3 position, 2.54mm keyed Resistive Touch Connector Capacitive Touch Connector LVDS1 Channel 0 Lane 3 Connector LVDS0 Channel 0 Lane 3 Connector Micro HDMI In Connector Micro HDMI LVDS0 Channel 1 Lane 3 Connector Display Port Connector GPIO Header Edge Connector mates to HSEC8-130-01-SM-DV-A

Reference Function Mini PCIe Connector Mini PCIe Conn, 2x26 0.8mm

2 Detailed Description 2.1 Overview This chapter details the VAR-SP8CustomBoard features and external interfaces, some of which are driven directly by the SPEAR-MX8 SOM. Please refer to the SOM data sheet for more information. Table 2-1 describes this chapter table header and acronyms used. Table 2‐1: Acronyms used on tables column header Meaning Differential Signal VAR-SP8CustomBoard schematic signal name The VAR-SP8CustomBoard features Quad DF40C-90DS Board to Board connectors to connect with the SPEAR-MX8 System-on-module. Please refer to the SOM modul

2.3 Standard External Interfaces 2.3.1 The VAR-SP8CustomBoard features a USB Type C OTG connector. USB Type C OTG connector provides USB3.0/2.0 OTG connectivity port. Table 2‐2: USB Type‐C OTG Connector Pin‐out (J41) VAR‐SP8CustomBoard Signal Type Description GND P Ground return SS_TX1_P DSO SuperSpeed diff. pair #1, TX, positive SS_TX1_N DSO SuperSpeed diff. pair #1, TX, negative USB_SS3_VBUS P Bus power USB_SS3_CC1 IO Configuration channel USB_C_OTG2_DP DSIO Non-SuperSpeed diff. pair, pos. 1, positive USB_C_OTG2_DN DSIO Non-SuperSpeed diff. pair, pos. 1, negative SBU1 IO Sideband use...

VAR‐SP8CustomBoard Signal GND SATAC_TXP SATAC_TXN GND SATAC_RXN SATAC_RXP GND GND GND Type P DSIO DSIO P DSIO DSIO P P P Description Digital ground SATA Transmit Lane Diff. Positive SATA Transmit Lane Diff. Negative Digital ground SATA Receive Lane Diff. Negative SATA Receive Lane Diff. Positive Digital ground Digital ground Digital ground 2.3.1.3 SATA Power DC-Out Pin-out (J6) A 5V,3.3V power output is available via shrouded 3 pin header for SATA power. Mating Housing Molex 22-01-3037; Connector Terminal Female Molex 08-50-0114; Table 2‐4: SATA Power DC‐Out Connector Pin‐out (6) Pin # 1 2 3

2.3.1.4 Dual USB 2.0 HOST Connector Pin-out (J35) The VAR-SP8CustomBoard features on board USB HUB that utilizes SPEAR-MX8 HSIC Interface. 3 Downstream ports of the HUB are divided: 2 ports are connected to J35 and one port connected to mini PCI-Express Card. Table 2‐5: Dual USB2.0 Host Connector Pin‐out (J35) Pin # A1 A2 A3 A4 B1 B2 B3 B4 5 6 7 8 VAR‐SP8CustomBoard Signal USB#A_HOST_VBUS USB#A_HOST_DN_C USB#A_HOST_DP_C USB#A_HOST_GND USB#B_HOST_VBUS USB#B_HOST_DN_C USB#B_HOST_DP_C USB#B_HOST_GND GND GND GND GND Type P DSIO DSIO P P DSIO DSIO P P P P P Description +5V power supply. 500ma...

Micro SD Card interface is driven by the USDHC interface of the of the SOM. Description SD Parallel Data2 SD Parallel Data3 SD Command SD card 3.3V supply SD Clock Digital Ground SD Parallel Data0 SD Parallel Data1 SD Card Detect SHIELD pin reference SHIELD pin reference SHIELD pin reference SHIELD pin reference Mini PCIe The SOM PCI Express interface is exposed by the VAR-SP8CustomBoard through a standard Mini PCI Express connector supporting connection of mini PCI Express expansion card. 2.3.3.1 Mini PCIe Connector Pin-out (J37) Table 2‐8: mini PCI Express Connector Pin‐out (J37) Pin #...