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    參數(shù)資料
    型號: MCP23018T-E/MJ
    廠商: Microchip Technology
    文件頁數(shù): 15/56頁
    文件大?。?/td> 0K
    描述: IC I/O EXPANDER I2C 16B 24QFN
    標準包裝: 3,300
    接口: I²C
    輸入/輸出數(shù): 16
    中斷輸出:
    頻率 - 時鐘: 3.4MHz
    電源電壓: 1.8 V ~ 5.5 V
    工作溫度: -40°C ~ 125°C
    安裝類型: 表面貼裝
    封裝/外殼: 24-VFQFN 裸露焊盤
    供應商設(shè)備封裝: 24-QFN(4x4)
    包裝: 帶卷 (TR)
    MCP23018/MCP23S18
    DS22103A-page 22
    2008 Microchip Technology Inc.
    1.6.5
    INTERRUPT CONTROL REGISTER
    The INTCON register controls how the associated pin
    value is compared for the interrupt-on-change feature.
    If a bit is set, the corresponding I/O pin is compared
    against the associated bit in the DEFVAL register. If a
    bit value is clear, the corresponding I/O pin is compared
    against the previous value.
    REGISTER 1-7:
    INTCON – INTERRUPT-ON-CHANGE CONTROL REGISTER
    R/W-0
    IOC7
    IOC6
    IOC5
    IOC4
    IOC3
    IOC2
    IOC1
    IOC0
    bit 7
    bit 0
    Legend:
    R = Readable bit
    W = Writable bit
    U = Unimplemented bit, read as ‘0’
    -n = Value at POR
    ‘1’ = Bit is set
    ‘0’ = Bit is cleared
    x = Bit is unknown
    bit 7-0
    IOC7:IOC0: Controls how the associated pin value is compared for interrupt-on-change <7:0>.
    1
    = Pin value is compared against the associated bit is DEFVAL register
    0
    = Pin value is compared against the previous pin value.
    Refer to INTCON and GPINTEN.
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