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SFF8639_U2_FIREFLY
EH2018002034
Reference Manual
November 2020 ver0.1

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Summary of Contents for E-ELEMENTS HAPS CONNECT SFF8639 U2 FIREFLY

  • Page 1 SFF8639_U2_FIREFLY EH2018002034 Reference Manual November 2020 ver0.1...
  • Page 2 Copyright Notice and Proprietary Information © 2020 E-elements Technology Co., Ltd. These all associated documentation are proprietary to E-elements and may only be used pursuant to the terms and conditions of a written license agreement with E-elements. All other use, reproduction, modification, or distribution of the associated documentation is strictly prohibited.
  • Page 3: Revision History

    Revision History Date Comment Nov 2020 Initial version © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 4: Table Of Contents

    IMPORTANT! ......................6 Overview ........................7 Layout ........................... 8 Block Diagram ......................9 Jumpers ........................10 Pin Tables ........................11 U.2 Connector ...................... 11 FIREFLY Connector ..................... 12 PMOD Connectors ....................13 © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 5: Sff8639_U2_Firefly

    ® HapsTrak 3 Connector Considerations The HT3 connectors must be attached carefully! If connected improperly socket pins can be deformed or holding rail ends can become damaged. © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 6: Overview

    U.2 SFF8639 connector that support up to six high-speed serial links over two FIREFLY cables. Figure 1: Top View of SFF8639_U2_FIREFLY SFF8639_U2_FIREFLY daughter board consists of: • 2 FIREFLY connectors • 1 U.2 SFF8639 connector • 1 PMOD connectors © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 7: Layout

    SFF8639_U2_FIREFLY Layout Layout Figure 2: Top View of SFF8639_U2_FIREFLY Layout © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 8: Block Diagram

    SFF8639_U2_FIREFLY Block Diagram Block Diagram Figure 1 shows the connectivity between the SFF8639_U2_FIREFLY daughter board’s headers. Figure 3: SFF8639_U2_FIREFLY Block Diagram © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 9: Jumpers

    JP11 Short pin 2-3: SMB_CLK pull down to GND. Short pin 1-2: SMB_DAT pull up to 3.3V. JP12 Short pin 2-3: SMB_DAT pull down to GND. Table 1: SFF8639_U2_FIREFLY Control Signals © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 10: Pin Tables

    REFCLK0_P REFCLK_N S1T_P S1T_N PET0_P PET0_N S1R_N S1R_P PER0_N PER0_P PET1_P PET3_P PET1_N PET3_N PER1_N PER3_N PER1_P PER3_P PET2_P SMB_CLK PET2_N SMB_DAT DUALPORTEN# PER2_N PER2_P WAKE# PCIERST# PRSNT# DEVSLP# ACTIVITY# IFDET# © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 11: Firefly Connector

    SFF8639_U2_FIREFLY Pin Table FIREFLY Connector © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...
  • Page 12: Pmod Connectors

    Pin Table SFF8639_U2_FIREFLY PMOD Connectors Trace Name SMB_CLK SMB_DAT IFDET# +3V3 © 2020 E-elements Tech. SFF8639_U2_FIREFLY Reference anual November 2020...

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