Page 2
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 APPLICABILITY TABLE PRODUCT HE922-3GR WE922-3GR Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 2 of 39 Mod. 0805 2015-02 Rev.4...
Page 3
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein.
Page 4
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Telit and its licensors. It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Introduction 1.1. Scope The scope of this document is to describe the xE922-3GR Interface Board which is part of the complete xE922-3GR Development Kit (Dev-Kit) 1.2. Related Documents Doc # Document Name 1VV0301272 xE922-3GR Hardware User Guide 1VV0301249...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 General description The Interface Board (IFBD) is custom designed to interface the Telit module variant xE922-3GR with the Telit Generic Evaluation Board (EVB) thus forming the complete Development Kit of xE922-3GR The IFBD provides the mapping of Telit module signals and functions into the generic EVB signals and functions The xE922-3GR IFBD design includes the following items:...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 2.1. IFBD view The below pictures show the IFBD Top and bottom view Figure 1 xE922-3GR IFBD Top View Figure 2 xE922-3GR IFBD Bottom View Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 9 of 39 Mod.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Component Assembly Diagram Figure 3 component Assembly Top (Top View) Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 10 of 39 Mod. 0805 2015-02 Rev.4...
Page 11
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Figure 4 component Assembly Bottom (Bottom View) Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 11 of 39 Mod. 0805 2015-02 Rev.4...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 120-Pin male B2B connectors The interface between IFBD and EVB is implemented via 3pcs of 120p (20p x 6 rows) SAMTEC SEARAY 1.27mm High Speed/High Density B2B connectors (10mm stacking height SEAM/SEAF). The following tables describe the IFBD B2B connector pin naming.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Module to EVB Signal Mapping The below table introduces the mapping of xE922-3GR module pins and functions into the generic EVB Pin-List and functionality In many cases the signal names are changed across the platform as many of the EVB signals are simply used as “pipes”...
Page 16
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Pin # IFBD Connector Pin Generic EVB Pin Name xE922-3GR Pad Description Name PCIE_RX_P USB_SS_TX_P PCIE_TX_P PCIE_RX_M USB_SS_TX_M CAM_MCLK TGPIO_12 Camera MCLK output USIF1_TXD SPI_MOSI UART1 TXD / SPI1 Serial data Output PCIE_TX_M GPIO47 TGPIO_11...
Page 17
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Pin # IFBD Connector Pin Generic EVB Pin Name xE922-3GR Pad Description Name CSI2_DN CSI2_D0_N Sub Camera CSI Data Input Negative CAM2_RESET TGPIO_21 Sub Camera Reset / GPIO CAM2_PD TGPIO_10 Sub Camera Power Down / GPIO GPIO7 TGPIO_22 Reserved for internal HE/WE922...
Page 18
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Pin # IFBD Connector Pin Generic EVB Pin Name xE922-3GR Pad Description Name SDIO_DAT2 WIFI_SD2_TGPIO17 SDIO2 SDIO_DAT3 WIFI_SD3_TGPIO18 SDIO3 CAM1_RESET WIFI_SD4_TGPIO23 Main Camera Reset / GPIO USIF2_RXD RX_AUX UART2 RXD / SPI2 Serial data input CSI1_DN1 CSI1_D1_N Main Camera CSI Data1 Input...
Page 19
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Table 5 JM2 Connector IFBD Connector Pin Generic EVB Pin xE922-3GR Description Name Name GPS LNA BIAS coming from EVB Main GPS_LNA_BIAS GPS_LNA_BIAS Board GPIO54_EINT1 GPS_LNA_EN GPIO / External IRQ VMIC_BIAS MICBIAS AJ18 Analog Microphone bias...
Page 20
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Connector Pin Generic EVB Pin xE922-3GR Description Name Name HP Left for 3.5mm jack or EP_P for dif HP_OUT_L/EP_P EAR1_MT+ AL20/AK21 mode SPKR_LN AF21 Speaker Signal Out Negative SPKR_LP AH21 Speaker Signal Out Positive VAUX_3P0V Auxiliary 3.0V power supply (from eMMC)
Page 21
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Connector Pin Generic EVB Pin xE922-3GR Description Name Name DVI_RX DVI_TX DVI_CLK DVI_WAO GPIO55_EINT15 REF_CLK GPIO / External IRQ eSIM_RST External SIM signal 1 – Power supply for VSIM1 SIMVCC1 the SIM External SIM signal 1 –...
Page 22
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Connector Pin Generic EVB Pin xE922-3GR Description Name Name VBUS_DET USB_VBUS External IRQ, Used for SoC VBUS detection USB_ID USB_ID USB_ID, USB OTG use External SIM signal 2 – Card detect (Active USIM2_DETECT SIMIN2 AR10...
Page 23
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Table 6 JM3 Connector IFBD Connector Pin xE922-3GR Pin # Generic EVB Pin Name Description Name V_BAT_1 VBATT AR18 Main power supply for Baseband V_BAT_2 VBATT AS19 Main power supply for Baseband V_BAT_3 VBATT AR20...
Page 24
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Connector Pin xE922-3GR Pin # Generic EVB Pin Name Description Name Enable External VBUS source for VBUS_PWR_EN AW17 GPIO49 GPIO / MIPI Trace Data 5 GPIO48 GPIO / MIPI Trace Data 4 DSI_CLKP DSI_CLK_P LCD DSI Clock Positive...
Page 25
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Connector Pin xE922-3GR Pin # Generic EVB Pin Name Description Name Thermal sensor on IFBD, Read by D8_THERM_ASTAR D8_THERM_ASTAR Arduino on EVB GPIO73_EINT10 GPIO / External IRQ GPIO72_EINT9 GPIO / External IRQ GPIO67_EINT0 GPIO / External IRQ GPIO66_EINT15...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 IFBD Sub-Circuitry / Stuffing Options This section provides the description of circuits which were designed into the IFBD in order to serve as an interface between EVB main board and the xE922-3GR module These items are specific to the xE922-3GR module thus are not part of the generic EVB main board 6.1.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.2. ADC_VBATMEAS As explained in the xE922-3GR HW user guide, in case that external charger IC solution is not applied, there is still the requirement to connect ADC_VBATMEAS to the V_BAT supply input (R30 stuffed / R31 not stuffed = default).
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.3. Analog audio output xE922-3GR has two options to provide Analog audio output to the 3.5mm headset connector on the EVB main Board: Single ended stereo : R16 not stuffed / R17 stuffed ( default) o In that case it is recommended to use the Stereo Jack on EVB ...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.4. POWER ON_OFF / RESET The EVB main board provides in a push button PWR_PB, when asserted active LOW polarisation. In order to comply with the active HIGH polarity of xE922-3GR system, the transistor Q1 inverts the signal. As also explained in the xE922-3GR HW user guide, when the system is supplied with V_BAT for the first time, it will automatically start up without waiting for a start-up event.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.5. As explained in the xE922-3GR HW user guide, for proper DRD / OTG operation, USB_ID and GPIO1_EINT2 should be connected together, R38. 6.6. CAM_I2C Starting from xE922-3GR revision CS1772B, the CAM_I2C signals will no longer have an internal pullup resistors to VAUX_1P8V.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.7. USIM Starting from xE922-3GR revision CS1772B, internal pullups will be foreseen on the SIMIO lines (R43/R44 will become obsolete). For proper SIM card detection (active LOW, external pullup resistors are required (R41/R42). 6.8.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.9. JTAG / MIPI connector The EVB main board has a standard 20p box header used for JTAG interfacing. In-order to better match the JTAG tools (JTAG Pod) used for xE922-3GR, an additional JTAG connector (J1) was added to IFBD.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 6.10. RF connectors The xE922-3GR system can work with a passive GNSS antenna. (Internal LNA available on the module) For active GNSS antenna application, a dedicated 3.0V regulator which resides on the EVB main board can be enabled for suppling the external antenna LNA via GPS_LNA_BIAS line.
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Schematics Searchable PDF CS1777A-A.pdf CS1777A-B.pdf Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 35 of 39 Mod. 0805 2015-02 Rev.4...
Page 36
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 36 of 39 Mod. 0805 2015-02 Rev.4...
Page 37
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 37 of 39 Mod. 0805 2015-02 Rev.4...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Safety Recommendations READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas: ...
Interface Board HW User Guide 1VV0301285 Rev.0.3 – 2017-01-12 Document History Revision Date Changes 2016-05-26 First draft for review 2016-08-24 Updated naming Updates related to CS1772B 2017-01-12 Update stuff options in screenshots Update on GPIO7 reserved function (ch 5 table 4) Reproduction forbidden without written authorization from Telit Communications S.p.A.
Need help?
Do you have a question about the E922-3GR Series and is the answer not in the manual?
Questions and answers