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  • 參數(shù)資料
    型號: DTMFDECODER-RD
    廠商: Silicon Laboratories Inc
    文件頁數(shù): 156/178頁
    文件大?。?/td> 0K
    描述: KIT REF DESIGN DTMF DECODER
    應用說明: DTMF Decoder Ref Design AppNote
    標準包裝: 1
    主要目的: 電信,DTMF 解碼器
    嵌入式:
    已用 IC / 零件: C8051F300
    主要屬性: 8kHz 采樣速率模數(shù)轉(zhuǎn)換器
    次要屬性: 16 個 Goertzel 濾波器
    已供物品: 板,軟件
    產(chǎn)品目錄頁面: 627 (CN2011-ZH PDF)
    相關產(chǎn)品: 336-1535-5-ND - IC 8051 MCU 8K FLASH 14-SOIC
    C8051F300-GMR-ND - IC 8051 MCU 8K FLASH 11QFN
    336-1245-ND - IC 8051 MCU 8K FLASH 11QFN
    其它名稱: 336-1283
    Rev. 2.9
    79
    C8051F300/1/2/3/4/5
    SFR Definition 8.11.
    Bit7:
    IN1PL: /INT1 Polarity
    0: /INT1 input is active low.
    1: /INT1 input is active high.
    Bits6–4: IN1SL2–0: /INT1 Port Pin Selection Bits
    These bits select which Port pin is assigned to /INT1. Note that this pin assignment is inde-
    pendent of the Crossbar; /INT1 will monitor the assigned Port pin without disturbing the
    peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
    assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
    setting to ‘1’ the corresponding bit in register XBR0).
    Bit3:
    IN0PL: /INT0 Polarity
    0: /INT0 interrupt is active low.
    1: /INT0 interrupt is active high.
    Bits2–0: INT0SL2–0: /INT0 Port Pin Selection Bits
    These bits select which Port pin is assigned to /INT0. Note that this pin assignment is inde-
    pendent of the Crossbar. /INT0 will monitor the assigned Port pin without disturbing the
    peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
    assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
    setting to ‘1’ the corresponding bit in register XBR0).
    R/W
    Reset Value
    IN1PL
    IN1SL2
    IN1SL1
    IN1SL0
    IN0PL
    IN0SL2
    IN0SL1
    IN0SL0
    00000001
    Bit7
    Bit6
    Bit5
    Bit4
    Bit3
    Bit2
    Bit1
    Bit0
    SFR Address:
    0xE4
    Note: Refer to SFR Definition 15.1 for INT0/1 edge- or level-sensitive interrupt selection.
    IN1SL2–0
    /INT1 Port Pin
    000
    P0.0
    001
    P0.1
    010
    P0.2
    011
    P0.3
    100
    P0.4
    101
    P0.5
    110
    P0.6
    111
    P0.7
    IN0SL2–0
    /INT0 Port Pin
    000
    P0.0
    001
    P0.1
    010
    P0.2
    011
    P0.3
    100
    P0.4
    101
    P0.5
    110
    P0.6
    111
    P0.7
    IT01CF: INT0/INT1 Configuration
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