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        參數(shù)資料
        型號(hào): TMS320C6211PBK167
        廠商: Texas Instruments, Inc.
        元件分類: 數(shù)字信號(hào)處理
        英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSORS
        中文描述: 定點(diǎn)數(shù)字信號(hào)處理器
        文件頁(yè)數(shù): 99/123頁(yè)
        文件大?。?/td> 1205K
        代理商: TMS320C6211PBK167
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        6.9
        Enhanced Control Peripherals
        6.9.1
        Enhanced Pulse Width Modulator (ePWM) Timing
        PWM
        (B)
        TZ
        XCLKOUT
        (A)
        t
        w(TZ)
        t
        d(TZ-PWM)HZ
        TMS320F2808, TMS320F2806
        TMS320F2801, UCD9501
        Digital Signal Processors
        SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
        PWM refers to PWM outputs on ePWM1-6.
        Table 6-20
        shows the PWM timing requirements and
        Table 6-21
        , switching characteristics.
        Table 6-20. ePWM Timing Requirements
        (1)
        TEST CONDITIONS
        Asynchronous
        Synchronous
        With input qualifier
        MIN
        MAX
        UNIT
        cycles
        cycles
        cycles
        t
        w(SYCIN)
        Sync input pulse width
        2t
        c(SCO)
        2t
        c(SCO)
        1t
        c(SCO)
        + t
        w(IQSW)
        (1)
        For an explanation of the input qualifier parameters, see
        Table 6-13
        .
        Table 6-21. ePWM Switching Characteristics
        PARAMETER
        TEST CONDITIONS
        MIN
        20
        MAX
        UNIT
        ns
        cycles
        ns
        t
        w(PWM)
        t
        w(SYNCOUT)
        t
        d(PWM)tza
        Pulse duration, PWMx output high/low
        Sync output pulse width
        Delay time, trip input active to PWM forced high
        Delay time, trip input active to PWM forced low
        Delay time, trip input active to PWM Hi-Z
        8t
        c(SCO)
        no pin load
        25
        t
        d(TZ-PWM)HZ
        20
        ns
        6.9.2
        Trip-Zone Input Timing
        A.
        B.
        TZ - TZ1, TZ2, TZ3, TZ4, TZ5, TZ6
        PWM refers to all the PWM pins in the device. The state of the PWM pins after TZ is taken high depends on the PWM
        recovery software.
        Figure 6-14. PWM Hi-Z Characteristics
        Table 6-22. Trip-Zone input Timing Requirements
        (1)
        MIN
        MAX
        UNIT
        cycles
        cycles
        cycles
        t
        w(TZ)
        Pulse duration, TZx input low
        Asynchronous
        Synchronous
        With input qualifier
        1t
        c(SCO)
        2t
        c(SCO)
        1t
        c(SCO)
        + t
        w(IQSW)
        (1)
        For an explanation of the input qualifier parameters, see
        Table 6-13
        .
        Electrical Specifications
        99
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