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    洽洽

    光电模组技术资料3

    • 时间:2014/12/29
    • (5)引脚定义
      Pin
      Name
      Description
      Input/Outp ut pin
      Function
      1
      GND
      Ground
       
       
      2
      XY_LED
      XY_LEDdriver Connection
       
      Must connect to LED-;
      3
      MOTION
      Motion Detect
      (active low output)
       
      Output
       
      Open when not used
      Default active low signal, can be
      changed in
      Motion_Control register 0x1d
      4
      GPIO
      General Purpose Input /
      Output for FPD function
      Output
      Pin indicate Finger Presence
      Detection, OFN engine 0x60 must
      be enabled
      Open when not used
      5
      VDDIO
      Voltage supply for I/O
      Power
      Sets I/O voltage but not for  nDREG_EN
      6
      IO_MOSI_A0
      TWI address set or
      Master Out Slave In
      Input
      SPI : MOSI (Master Out Slave In)
      signal
      TWI : address select 0
      Open when not used
      7
      IO_CLK
      Serial clock input
      Input
      Serial clock signal
      8
      IO_MISO_SDA
      TWI serial data or
      Master In Slave Out
      Input
      SPI : MISO (Master Input Slave
      Out) signal
      TWI : serial data signal
      9
      IO_NCS_A1
      TWI address set or
      Chip Select
      Input
      SPI : NCS (chip select) signal
      TWI : address select 1
      Open when not used
      Active low signal
      10
      NRST
      Hardware Chip Reset
      Input
      Set to high when not used
      Active low signal