Seco Smarc CSM-B79 User Manual

Carrier board for smarc rel. 2.0 / 2.1 compliant modules

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CSM-B79

Carrier Board for SMARC

Rel. 2.0 / 2.1

compliant modules

Table of Contents

Summary of Contents for Seco Smarc CSM-B79

Page 1 CSM-B79 ® Carrier Board for SMARC Rel. 2.0 / 2.1 compliant modules...
Page 2 SECO S.p.A. reserves the right to change precise specifications without prior notice to supply the best product possible. For further information on this module or other SECO products, but also to get the required assistance for any and possible issues, please contact us using the dedicated web form available at http://www.seco.com...
Page 3: Table Of Contents
LVDS / MIPI-DSI connector ......................................35 3.3.3 eDP connectors .......................................... 39 3.3.4 LCD Panels Voltage connectors ....................................40 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 4 Power / Status LEDs ........................................75 Appendices ....................................76 Thermal Design ........................................... 77 Accessories ............................................78 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 5: Warranty
Electrostatic Discharges • RoHS compliance • Safety Policy • Terminology and definitions • Reference specifications CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 6 All changes or modifications to the equipment not explicitly approved by SECO S.p.A. could impair the equipment s functionality and could void the warranty CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 7 An RMA Number will be sent within 1 working day (only for on-line RMA requests). CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 8: Safety
The CSM-B79 board is designed using RoHS compliant components and is manufactured on a lead-free production line. It is therefore fully RoHS compliant. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 9: Safety Policy
ES1 requirements; the board in its enclosure must be evaluated for temperature and airflow considerations. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 10: Terminology And Definitions
MultiMedia Card / embedded MMC, a type of memory card, having the same interface as the SD card. The eMMC is the embedded version of CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 11 Unified Extensible Firmware Interface, a specification defining the interface between the OS and the board’s firmware. It is meant to replace the original BIOS interface CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 12 Series 9 of Windows Media Video, a video compression format inlcuding native support for interlaced video, non-square pixels, and frame interpolation CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 13: Reference Specifications
SMARC Hardware Specification https://sget.org/wp-content/uploads/2020/05/SMARC_V211.pdf 2.1.1 SD Card Association https://www.sdcard.org/home SDIO https://www.sdcard.org/developers/overview/sdio SM Bus http://www.smbus.org/specs TMDS http://www.siliconimage.com/technologies/tmds CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 14 UEFI http://www.uefi.org USB 2.0 and USB OTG http://www.usb.org/developers/docs/usb_20_070113.zip USB 3.0 https://usb.org.10-1-108-210.causewaynow.com/sites/default/files/usb_32_20191024.zip CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 15: Introduction
• Introduction • Technical Specifications • Electrical Specifications • Mechanical Specifications • Block Diagram CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 16 Please refer to following chapter for a complete list of all peripherals integrated and characteristics. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 17 Tcases remain in the range above indicated. Please also check paragraph CS4207) 4.1. I2S Audio header CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 18: Smart Battery Connector
This signal goes directly from the battery to the on-board charger. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 19: Rtc Battery
Since the modules could be designed to work only with a fixed voltage value in this range, on CSM-B79 carrier 3.3V , type ADIMPEX p/n LE008208-R. 4.25V CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 20: Power Rails Meanings
_DSW: Deep Sleep Well voltages, i.e. power rails that are derived directly from VIN coming from Power IN Connector CN3. Examples: +3.3V_DSW, +1.8V_DSW. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 21: Mechanical Specifications
CSM-B79 have been soldered seven metallic spacers, height 8mm, 2.5mm diameter module. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 22: Block Diagram
2.5 Block Diagram I2S #2 I2S Audio Header Feature Pin GPIO / FuSa SD Card Slot JTAG connector header Header HD Audio Codec Switch microSIM Slot TRSS Audio jack I2S #0 I2S Audio Codec USB 2.0 #5 M.2 Key B Slot SPI Flash Socket PCI-e #A (Modem)
Page 23 • Connectors placement • Connectors overview • Connectors description...
Page 24: Connectors Placement
3.1 Connectors placement On CSM-B79 carrier board, there are several connectors. Some of them are standard connectors, like Gigabit Ethernet, USB ports, and are placed on the same side of the board, so that they can be placed on a panel of a possible enclosure. In the following picture it is possible to see the position of each connector.
Page 25 Test / LID Boot sel enable selector button button button button switch Disable #2 Disable #1 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 26: Connectors Overview
CN41 TRRS Audio jack CN43 SPI Flash Socket CN44 eSPI Header CN45 Feature Header CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 27: Jumpers And Switch List
RTC Battery enable SW15 LID Button SW16 I2S / HDA Codec selector SW17 PCIe routing selector CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 28: Connectors Description
CSI1 CAMERA INTERFACE CSI1_RX2+ CSI0_RX1+ CSI0 CAMERA INTERFACE CSI1 CAMERA INTERFACE CSI1_RX2- CSI0_RX1- CSI0 CAMERA INTERFACE CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 29 ESPI INTERFACE SPI 0 INTERFACE SPI0_CK MDIO_CLK/JTAG_TDI SERDES SPI 0 INTERFACE SPI0_DIN MDIO_DAT/JTAG_TDO SERDES CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 30 RSVD#P72 (JTAG_RST#) Reserved Purpose Signal RSVD#P73 (JTAG_TRST#) USB2_SSRX+ USB3_EN_OC# USB2_SSRX- PCI_e PCIE_A_RST# PCIE_B_RST# PCI-e CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 31 DP0_AUX+ DP++ INTERFACE #0 HDMI/DP++ INTERFACE #1 HDMI_CTRL_CK/DP1_AUX+ P105 S106 DP0_AUX- DP++ INTERFACE #0 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 32 BOOT_SEL BOOT_SEL2# P125 S126 LVDS0_0- eDP0_TX0- PRIMARY_DISPLAY DSI0_D0- MANAGEMENT RESET_OUT# P126 S127 LCD0_BKLT_EN LCD_SUPPORT CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 33 P148 S149 SLEEP# MANAGEMENT VDD_IN P149 S150 VIN_PWR_BAD# MANAGEMENT VDD_IN P150 S151 CHARGING# MANAGEMENT CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 34 S155 FORCE_RECOV# BOOT_SEL VDD_IN P155 S156 BATLOW# MANAGEMENT VDD_IN P156 S157 TEST# MANAGEMENT S158 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 35: Lvds / Mipi-Dsi Connector
Module LVDS Channel#0 Differential pairs ® LVDS0_CLK+_CONN / LVDS0_CLK-_CONN: SMARC Module LVDS Channel#0 Differential clock LVDS_DDC_CLK_3V3 LVDS_DDC_DAT_3V3 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 36 This selectable power rail is carried both to LVDS connector CN14 and eDP0 connector CN60 +5V_RUN (par.3.3.3). CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 37 Finally, these signals (VDD_LCD0, VDD_LCD1, VDD_BKLT0, VDD_BKLT1) are also carried to dedicated LCD panels voltage connectors CN16 and CN17 (par.3.3.4). CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 38 DSI1_D0-_CONN DSI1_D1+_CONN DSI1_D1-_CONN DSI1_D2+_CONN DSI1_D2-_CONN DSI1_D3+_CONN DSI1_D3-_CONN DSI1_CLK+_CONN DSI1_CLK-_CONN LCD0_BKLT_PWM_3V3 LCD0_BKLTEN_3V3 LCD0_VDD_EN_3V3 LVDS_DDC_CLK_3V3 LVDS_DDC_DAT_3V3 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 39: Edp Connectors
® eDP0_AUX+ / eDP0_AUX-: SMARC module embedded DP channel#0 auxiliary channel differential data pair. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 40: Lcd Panels Voltage Connectors
CN16 and CN17, are two IDC connectors, dual row, 10 pin, p2.54 mm connector, type MOLEX p/n 70246-1004 or equivalent. Mating connector: MOLEX p/n 22-25-2102 with 70058 series female crimp terminals. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 41 Always use HDMI-certified cables for the connection between the board and the HDMI display; a category 2 (High-Speed) cable is recommended for higher resolutions, category 1 cables can be used for 720p resolution. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 42 DP interface or HDMI with the use of external DP++ to HDMI dongle, or fixed HDMI or DP mode condition. This can be set with the 4- way jumper CN76 described below. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 43 DDI Interface #0 Differential Pair #3. Can be used as Display Port differential pair #3 or TMDS (HDMI) Clock differential pair CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 44 DD0_PWR: Power voltage reference for DisplayPort, directly derived from +3.3V_RUN through a current limited power switch CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 45 GPIO3 / CAM1_RST#: Reset signal for MIPI CSI1, Active Low Output. This signal shares the same pin from card edge connector with GPIO3 (par.3.3.27) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 46 Socket 2 Key B SSD modules in 2230, 2242 or 2260 size. SATA_RX+ SATA_M2_SELECT# +3.3V_RUN SATA_RX- +3.3V_RUN +3.3V_RUN SATA_TX- SATA_TX+ CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 47 +12V_RUN Mating connector: MOLEX 87369-0400 crimp housing with MOLEX 51021 crimp terminals. +5V_RUN CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 48 WP Enabled: microSD card cannot be written ® by the SMARC module Inserted WP Disabled: microSD card can be written CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 49 PCIe #A, #B to M.2 Key E Slot CN36 (PCIe #B) and M.2 Key B Slot CN38 (PCIe #A) OFF position (2-4) PCIe #A, #B to PCI-e x4 slot CN33 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 50 GBEx_MDI3+/GBEx_MDI3-: Ethernet Controller #x Media Dependent Interface (MDI) I/O differential pair #3. It is the fourth differential pair in Gigabit Ethernet mode; it is not used in 10/100Mbps modes. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 51 PCIe_WAKE# W_DISABLE1#_E PCIe_B_Tx+_M2 PCIe_B_Tx-_M2 PCIe_B_Rx+_M2 PCIe_B_Rx-_M2 +3.3V_ALW PCIe_B_CLK+_M2 +3.3V_ALW PCIe_B_CLK-_M2 PCIe_B_RST# PCIE_B_CLKREQ# W_DISABLE2#_E CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 52 LED_2#: Indicator Output Signal driven low by the module inserted in the M.2 WLAN slot, used to activate LED diode D98 on CSM-B79 carrier board, signalling, when LED is ON, correct working of BT functionality CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 53 PCIE_A_CLK+_M2 UIM_DATA UIM_PWR PCIE_A_RX-_M2 PCIE_A_RX+_M2 +3.3V_ALW PCIE_A_TX-_M2 +3.3V_ALW PCIE_A_TX+_M2 PCIE_A_RST# +3.3V_ALW PCIE_A_CLKREQ# PCIE_A_CLK-_M2 PCIE_WAKE# CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 54 UIM_CLK: Clock line, output from M.2 WWAN card to the UIM module UIM_PWR: Power line for UIM module CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 55 The options for connectors used when routing PCIe lanes to M.2 Key E Slot CN36 (PCIe #B, par.3.3.12), to M.2 Key B Slot CN38 (PCIe #A, par.3.3.13) and SERDES (par.3.3.11) have been already described at reference paragraphs. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 56 PCIE_A_TX+_X4 PCIE_CLK-_X4 Buffer SMARC ® module PCI-e lane Transmitter lane #A- PCIE_A_TX-_X4 Power Ground CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 58 USB_ID: Client/Host identification signal. This signal is high when the USB port works in client mode, is low when works in Host mode. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 59 Avoid using USB 3.0 cables if the SMARC Module used doesn’t offer such an interface. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 60 Signals directly manged by the USB Type-C source controller on CSM-B79 carrier board VBUS_C: Power bus, current limited to 1.5A @5V by power switch controller. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 61 USB3_EN_OC#: USB over-current sense signal for USB Port #3. Active Low Input Signal, driven by current-limited power switch IC for VBUS_C and manged by SMARC ® module CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 62 I2S0 codec to audio jack CN41 HDA codec to audio jack CN41 I2S2 interface to pin header CN81 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 63 I2C_GP_CK with a set of back to back FETs to voltage translate. resistor. Also carried to Feature Header CN45 (par.3.3.26) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 64 COM0_RxD/COM2_RxD: COM port #0 / #2 RS-232 Receive data, COM0_TxD/COM2_TxD: COM port #0 / #2 RS-232 Transmit data CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 65 SER#3 serial port, instead, is carried directly from card edge connector to the feature connector (see par.3.3.26) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 66 OFF Position USB_DBG+ SER#1 on USB Debug connector CN73 SER#1 on Feature Header CN45 CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 67 SPI0_DOUT ® SPI0_CS1#: SMARC module SPI0 Master Chip Select 1, active low output signal CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 69 JTAG, set SW14 switch 2-4 in ON position and / or 3-way jumper CN78 in 2-3 position. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 70 Implementation of PTP (Precision Time Protocol) POWER_BTN# VIN_PWR_BAD# ® GBE1_SDP: SMARC module IEEE 1588 Trigger Signal for Hardware CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 71 2-3 position. Otherwise, when set in 1-2 position (default) this control signal is disabled. CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 72 GPIO5. This signal shares the same pin from JTAG_TRST# (P73) FUSA_THERMTRIP card edge connector with PWM_OUT (par.3.3.21) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 73 The management of this display is done using a HT16K33_SOP28 LED controller, driven through the SMARC module CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 74 VDD_IN value is set to 5V (7-8 position on CN8, par.2.3.3). VSMARC Power Good CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 75 D101: CARRIER_PWR_ON (ON, if Power on is ok) D102: CARRIER_STBY# (OFF, if in standby mode) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 77 (electronics + mechanics), and that they should be used only as a part of a more comprehensive ad-hoc cooling solutions, which also keeps the surface temperat rial or commercial grade). CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 78 A more detailed description can be found at related product page in Seco S.p.A website: SMARC DEV KIT (seco.com) CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.
Page 79 52100 Arezzo - ITALY Ph: +39 0575 26979 - Fax: +39 0575 350210 www.seco.com CSM-B79 CSM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: A.R - Reviewed by S.R. - Copyright © 2021 SECO S.p.A.

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