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    參數(shù)資料
    型號: MCP23S09-E/P
    廠商: Microchip Technology
    文件頁數(shù): 10/50頁
    文件大小: 0K
    描述: IC I/O EXPANDER SPI 8B 18DIP
    標(biāo)準(zhǔn)包裝: 25
    接口: SPI
    輸入/輸出數(shù): 8
    中斷輸出:
    頻率 - 時(shí)鐘: 10MHz
    電源電壓: 1.8 V ~ 5.5 V
    工作溫度: -40°C ~ 125°C
    安裝類型: 通孔
    封裝/外殼: 18-DIP(0.300",7.62mm)
    供應(yīng)商設(shè)備封裝: 18-PDIP
    包裝: 管件
    產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
    MCP23009/MCP23S09
    DS22121B-page 18
    2009 Microchip Technology Inc.
    1.6.3
    INTERRUPT-ON-CHANGE
    CONTROL REGISTER
    The GPINTEN register controls the interrupt-on-
    change feature for each pin.
    If a bit is set, the corresponding pin is enabled for
    interrupt-on-change.
    The
    DEFVAL
    and
    INTCON
    registers must also be configured if any pins are
    enabled for interrupt-on-change.
    REGISTER 1-3:
    GPINTEN – INTERRUPT-ON-CHANGE PINS
    R/W-0
    GPINT7
    GPINT6
    GPINT5
    GPINT4
    GPINT3
    GPINT2
    GPINT1
    GPINT0
    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
    GPINT7:GPINT0: General purpose I/O interrupt-on-change pins <7:0>
    1
    = Enable GPIO input pin for interrupt-on-change event
    0
    = Disable GPIO input pin for interrupt-on-change event
    Refer to INTCON and DEFVAL.
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