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    參數(shù)資料
    型號(hào): DSP56F805FV80
    廠商: Freescale Semiconductor
    文件頁(yè)數(shù): 5/56頁(yè)
    文件大?。?/td> 0K
    描述: IC DSP 80MHZ 64KB FLASH 144LQFP
    標(biāo)準(zhǔn)包裝: 60
    系列: 56F8xx
    核心處理器: 56800
    芯體尺寸: 16-位
    速度: 80MHz
    連通性: CAN,EBI/EMI,SCI,SPI
    外圍設(shè)備: POR,PWM,WDT
    輸入/輸出數(shù): 32
    程序存儲(chǔ)器容量: 71KB(35.5K x 16)
    程序存儲(chǔ)器類型: 閃存
    RAM 容量: 2.5K x 16
    電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
    數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b
    振蕩器型: 外部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 144-LQFP
    包裝: 托盤(pán)
    Interrupt and Program Control Signals
    56F805 Technical Data, Rev. 16
    Freescale Semiconductor
    13
    2.5 Interrupt and Program Control Signals
    Table 2-9 Interrupt and Program Control Signals
    No. of
    Pins
    Signal
    Name
    Signal
    Type
    State
    During
    Reset
    Signal Description
    1
    IRQA
    Input
    (Schmitt)
    Input
    External Interrupt Request A—The IRQA input is a synchronized
    external interrupt request indicating an external device is requesting
    service. It can be programmed to be level-sensitive or
    negative-edge-triggered.
    1
    IRQB
    Input
    (Schmitt)
    Input
    External Interrupt Request B—The IRQB input is an external
    interrupt request indicating an external device is requesting service.
    It can be programmed to be level-sensitive or
    negative-edge-triggered.
    1
    RESET
    Input
    (Schmitt)
    Input
    Reset—This input is a direct hardware reset on the processor.
    When RESET is asserted low, the device is initialized and placed in
    the Reset state. A Schmitt trigger input is used for noise immunity.
    When the RESET pin is deasserted, the initial chip operating mode
    is latched from the EXTBOOT pin. The internal reset signal will be
    deasserted synchronous with the internal clocks, after a fixed
    number of internal clocks.
    To ensure complete hardware reset, RESET and TRST should be
    asserted together. The only exception occurs in a debugging
    environment when a hardware device reset is required and it is
    necessary not to reset the OnCE/JTAG module. In this case, assert
    RESET, but do not assert TRST.
    1
    RSTO
    Output
    Reset Output—This output reflects the internal reset state of the
    chip.
    1
    EXTBOOT
    Input
    (Schmitt)
    Input
    External Boot—This input is tied to VDD to force device to boot
    from off-chip memory. Otherwise, it is tied to VSS.
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