NEQTO Bridge Digital I/O Board

    NEQTO Bridge Digital I/O Board
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    introduction
    how to use

    neqto_bridge_digital_io_board.png

    NEQTO Bridge Digital IO Board

    Overview

    The NEQTO Bridge Digital IO Board is an evaluation extension board for easily connecting peripheral devices to the peripheral interface of the NEQTO Bridge Module, such as UART, SPI, I2C, and GPIO.
    Hereinafter, “NEQTO Bridge Digital IO Board” is called “IO board” and “NEQTO Bridge Module” is called “module”.

    By identifying the connected IO board, the module automatically enables the function unique to the IO board.
    neqto.js’ nqEx Object is used to control each interface. All interfaces are disabled by default, so enable them as needed.

    For information regarding the “Method for inserting and removing a module”, refer here.

    Main Specifications

    ItemSpecsNotes
    Digital I/OUART x 1 ch
    SPI x 1 ch
    I2C for Module x 1 ch
    I2C for Short cable x 1 ch
    I2C for Long cable x 2 ch
    GPIO x 2 ch
    Photo Coupler Input1 chRefer to the module specifications.
    MOS Relay Output1 chRefer to the module specifications.
    Analog Input1 ch
    OPA365 is used as a non-inverting buffer for ADC.    		Common-mode voltage range：min 0.1 V, max 3.2V@3.3 V
    Reset SW1 ch
    User SW1 ch
    LED2 LEDsSystem LED1 (Red), System LED2 (Blue)
    USBUSB 2.0 Full Speed compatible
    4.75 V – 5.25 V    		– 2 A@5 V recommended
    – USB Type-C™ compliant connector
    5V Output1 chCurrent Limit: 0.5A
    Operating Temperature Conditions0 ℃ – 50 ℃
    Storage Temperature Conditions0 ℃ – 50 ℃
    Size66.5 mm x 72.5 mm x 16.5 mm

    External Dimensions

    Interfaces

    UART / GPIO

    Pin No.Signal NameNote
    1VDD_UART3.3V / 5V
    2GNDGround
    3NODE1_UART_TXNEQTO Output
    4NODE1_UART_RXNEQTO Input
    5NODE1_UART_RTSNEQTO Output
    6NODE1_UART_CTSNEQTO Input
    7NODE1_IO5NODE1_IO5
    8NODE1_IO6NODE1_IO6

    Block diagram

    SPI

    J1 terminal

    Pin No.Signal NameNote
    1GNDGround
    2GNDGround
    3NODE2_SPI_MOSINEQTO Output
    4NODE2_SPI_SCKNEQTO Output
    5NODE2_SPI_NCSNEQTO Output
    6GPIO10NEQTO Input
    The SPI port must be enabled to use this pin.
    This input pin is pulled up externally with 10kΩ and should be used in GPIO operation mode 0(IN/PULL-UP) or 2(IN).

    J2 terminal

    Pin No.Signal NameNote
    1GNDGround
    2VDD_SPI3.3V / 5V
    3VDD_SPI3.3V / 5V
    4ReservedNot Connect
    5NRSTNEQTO Output
    The SPI port must be enabled to use this pin.
    The NRST signal is output.
    Not Connect when not in use.
    6NODE2_SPI_MISONEQTO Input

    Block diagram

    I2C for Module

    Pin No.Signal NameNote
    1VDD+3V3
    2GNDGround
    3NODE1_I2C_SDA
    4NODE1_I2C_SCL
    5NODE1_I2C_INT_Module
    6ReservedNot Connect

    Block diagram

    I2C for Short cable

    Pin No.Signal NameNote
    1VDD_I2CS3.3V / 5V
    2GNDGround
    3NODE1_I2C_SDA
    4NODE1_I2C_SCL
    5NODE1_I2C_INT_Short
    6ReservedNot Connect

    Block diagram

    I2C for Long cable

    Pin No.Signal NameNote
    1VDD_I2CL5V
    2NODE1_I2C_SDA
    3GNDGround
    4NODE1_I2C_SCL
    5GNDGround
    6NODE1_I2C_INT_Long
    7GNDGround
    8ReservedNot Connect

    Block diagram

    Interrupt

    The each NODE1_I2C_INT signal output to I2C Expander must be active low and open drain output.
    The interrupt signal output signal of I2C Expander (NODE2_IO0) is active low and open drain output.

    MOS Relay / Photo Coupler

    Pin No.Signal NameNote
    1NODE1_RELAY_OUT1
    2NODE1_RELAY_OUT2
    3NODE1_PhotoMOS_IN1
    4NODE1_PhotoMOS_IN2

    Block diagram

    ADC

    Pin No.Signal NameNote
    1ANALOG_Input1ADC Input
    2GNDGround

    Block diagram

    External Power Output

    Pin No.Signal NameNote
    1External Power Output5V
    2GNDGround

    Interface Specifications

    ItemSpecNotes
    Low Level Input Voltage 1Max 0.8 V@VDDSEL = 3.3 V(Note 1)UART / SPI/ GPIO
    Low Level Input Voltage 2Max 0.9 V@VDDSEL = 3.3 V(Note 1)I2C for Module
    Low Level Input Voltage 3Max 2 V@VDDSEL = 5.0 V(Note 1)I2C for Long cable
    Low Level Input Voltage 4Max 0.15 V@VDDSEL = 3.3 V(Note 1)I2C for Short cable
    High Level Input Voltage 1Min 2.0 V@VDDSEL = 3.3 V(Note 1)UART / SPI / GPIO
    High Level Input Voltage 2Min 2.35 V@VDDSEL = 3.3 V(Note 1)I2C for Module
    High Level Input Voltage 3Min 2.8 V@VDDSEL = 5.0 V(Note 1)I2C for Long cable
    High Level Input Voltage 4Min 2.9 V@VDDSEL = 3.3 V(Note 1)I2C for Short cable
    Low Level Output Voltage 1Max 0.6 V@IOL = 24 mA
    VDDSEL = 3.3 V(Note 1)    		UART / SPI / GPIO
    Low Level Output Voltage 2Max 0.5 V@IOL = 4 mA
    VDDSEL = 3.3 V(Note 1)    		I2C for Module
    Low Level Output Voltage 3Max 0.5 V@IOL = 1 mA
    VDDSEL = 3.3 V(Note 1)    		I2C for Short cable
    High Level Output Voltage 1Min 2.35 V@IOH = 24 mA
    VDDSEL = 3.3 V(Note 1)    		UART / SPI / GPIO
    High Level Output Voltage 2Min 2.8 V@IOH = 4 mA
    VDDSEL = 3.3 V(Note 1)    		I2C for Module
    High Level Output Voltage 3Min 2.2 V@IOH = 20 μA
    @VDDSEL = 3.3 V(Note 1)    		I2C for Short cable
    Output Voltageopen-collector
    Max 5 V 330 Ω pull-up    		I2C for Long cable
    • Note 1) VDDSEL
      When 3.3V is selected: It is supplied from RP601Z330A.
      The output deviation of RP601Z330A in the PWM / VFM automatic switching method is 3.3 V -2% + 4%.
      When 5V is selected: Supplied by TPS61372.
      The output deviation of the TPS61372 is 5.0 V ± 5%@PWM.

    Short Plug

    CN10 / CN61

    CN No.FunctionConfiguration
    CN10Photo Coupler Input pull-up settingOpen: No pull-up resistor (default)
    Close: 2.2 kΩ resistance to pull-up to 3.3 V
    CN61Output voltage setting for CN481-2: Do not use
    2-3: 5V (default)

    CN60 / CN62

    CN No.FunctionConfiguration
    CN60Output voltage setting for VDD_I2CS1-2: 3.3V
    2-3: 5V
    CN62Output voltage setting for VDD_I2CL1-2: 5V (default)
    2-3: Do not use

    CN50 / CN51 / CN53 / CN54 / CN57 / CN58 / CN59 / CN63 / CN64 / CN65 / CN66

    CN No.FunctionConfiguration
    CN50Signal setting connected to CN7_5 pin1-2: Do not use
    2-3: NODE1_UART_RTS (default)
    CN51Signal setting connected to CN7_6 pin1-2: Do not use
    2-3: NODE1_UART_CTS (default)
    CN53Serial signal setting when using User Console modeOpen: Do not use
    Close: (default)
    CN54Serial signal setting when using User Console modeOpen: Do not use
    Close: (default)
    CN57Output voltage setting for VDD_GPIO1-2: 3.3V (default)
    2-3: 5V
    CN58Output voltage setting for VDD_SPI1-2: 3.3V (default)
    2-3: 5V
    CN59Output voltage setting for VDD_UART1-2: 3.3V (default)
    2-3: 5V
    CN63Signal setting connected to CN7_3 pin
    *CN66 setting is also required.    		1-2: NODE1_UART_TX (default)
    2-3: RS-232C level data transmission
    CN64Signal setting connected to CN7_4 pin
    *CN65 setting is also required.    		1-2: NODE1_UART_RX (default)
    2-3: RS-232C level data reception
    CN65Signal setting connected to CN7_4 pin
    *CN64 setting is also required.    		1-2: RS-232C level reception data
    2-3: NODE1_UART_RX (default)
    CN66Signal setting connected to CN7_3 pin
    *CN63 setting is also required.    		1-2: RS-232C level transmission data
    2-3: NODE1_UART_TX (default)

    CN43

    CN No.FunctionConfiguration
    CN43ReservedOpen: (default)
    Close: Do not use

    Connector List

    FunctionAddressParts NumberMakerSocketCrimp terminalMaker
    UART, GPIOCN7DF11-8DP-2DSAHirose ElectricDF11-8DS-2CDF11-2428SCAHirose Electric
    SPIJ1, J2Through hole
    I2C for ModuleCN3FSS-41035-06Hirosugi KeikiPSS-410153-06Hirosugi keiki
    I2C for Short cableCN4DF11-6DP-2DSAHirose ElectricDF11-6DS-2CDF11-2428SCAHirose Electric
    I2C for Long cableCN5, CN55DF50A-8P-1HHirose ElectricDF50A-8S-1CDF50-2830SCFAHirose Electric
    Photo Coupler Input, MOS Relay OutputCN111770908Phoenix Contact
    Analog InputCN91702473Phoenix Contact
    External Power OutputCN481814498Phoenix Contact
    BatteryCN411814508Phoenix Contact
    USBCN44CX90B1-24PHirose Electric
    NEQTO Bridge ModuleCN1, CN2FSS-22043-13Hirosugi Keiki

    Appendix

    LAN Module installation

    By connecting an Ethernet module with an RJ-45 connector, it can be used in a wired network environment. Please contact us for more information.

    Ethernet module model number: WIZ850io

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