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  • 參數(shù)資料
    型號(hào): MC68HC11ED0VP3
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT, 3 MHz, MICROCONTROLLER, PDIP40
    封裝: PLASTIC, DIP-40
    文件頁(yè)數(shù): 8/108頁(yè)
    文件大小: 1672K
    代理商: MC68HC11ED0VP3
    Timing System
    Pulse Accumulator
    MC68HC11ED0 — Rev. 1.0
    Technical Summary
    Timing System
    PEDGE — Pulse Accumulator Edge Control Bit
    0 = In event mode, falling edges increment counter. In gated
    accumulation mode, high level enables accumulator and falling
    edge sets PAIF.
    1 = In event mode, rising edges increment counter. In gated
    accumulation mode, low level enables accumulator and rising
    edge sets PAIF.
    DDRA3 — Data Direction for Port A Bit 3
    I4/O5 — Input Capture 4/Output Compare Bit
    Configure TI4/O5 for input capture or output compare
    0 = OC5 enabled
    1 = IC4 enabled
    RTR[1:0] — RTI Interrupt Rate Select Bits
    These two bits select the rate for periodic interrupts. Refer to
    Table 9-6. RTI Rates (Period Length)
    RTR[1:0]
    Period Length
    Selected
    Period Length
    E = 1.0 MHz
    E = 2.0 MHz
    E = 3.0 MHz
    0 0
    213
    ÷ E
    8.19 ms
    4.096 ms
    2.731 ms
    0 1
    214
    ÷ E
    16.38 ms
    8.192 ms
    5.461 ms
    1 0
    215
    ÷ E
    32.77 ms
    16.384 ms
    10.923 ms
    1 1
    216
    ÷ E
    65.54 ms
    32.768 ms
    21.845 ms
    Table 9-7. RTI Rates (Frequency)
    RTR[1:0]
    Rate Selected
    Frequency
    E = 1.0 MHz
    E = 2.0 MHz
    E = 3.0 MHz
    0 0
    E
    ÷ 213
    122.070 Hz
    244.141 Hz
    366.211 Hz
    0 1
    E
    ÷ 214
    61.035 Hz
    122.070 Hz
    183.105 Hz
    1 0
    E
    ÷ 215
    30.518 Hz
    61.035 Hz
    91.553 Hz
    1 1
    E
    ÷ 216
    15.259 Hz
    30.518 Hz
    45.776 Hz
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    Freescale Semiconductor, Inc.
    For More Information On This Product,
    Go to: www.freescale.com
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