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  • 參數(shù)資料
    型號: MPC8535AVTAKGA
    廠商: Freescale Semiconductor
    文件頁數(shù): 9/126頁
    文件大?。?/td> 0K
    描述: MPU POWERQUICC III 783FCPBGA
    標(biāo)準(zhǔn)包裝: 1
    系列: MPC85xx
    處理器類型: 32-位 MPC85xx PowerQUICC III
    速度: 600MHz
    電壓: 1V
    安裝類型: 表面貼裝
    封裝/外殼: 783-BBGA,F(xiàn)CBGA
    供應(yīng)商設(shè)備封裝: 783-FCPBGA(29x29)
    包裝: 托盤
    MPC8535E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
    Electrical Characteristics
    Freescale Semiconductor
    106
    2.23.1
    Clock Ranges
    This table provides the clocking specifications for the processor cores and Table 74 provides the clocking specifications for the
    memory bus.
    The DDR memory controller can run in either synchronous or asynchronous mode. When running in synchronous mode, the
    memory bus is clocked relative to the platform clock frequency. When running in asynchronous mode, the memory bus is
    clocked with its own dedicated PLL. This table provides the clocking specifications for the memory bus.
    Table 73. Processor Core Clocking Specifications
    Characteristic
    Maximum Processor Core Frequency
    Unit
    Notes
    600 MHz
    800 MHz
    1000 MHz
    1250 MHz
    Min
    Max
    Min
    Max
    Min
    Max
    Min
    Max
    e500 core processor frequency
    600
    800
    600
    1000
    600
    1250
    MHz
    1, 2
    CCB frequency
    400
    333
    400
    333
    500
    DDR Data Rate
    400
    500
    Notes:
    1. Caution: The CCB to SYSCLK ratio and e500 core to CCB ratio settings must be chosen such that the resulting SYSCLK
    frequency, e500 (core) frequency, and CCB frequency do not exceed their respective maximum or minimum operating
    “DDR/DDRCLK PLL Ratio,” for ratio settings.
    2. The processor core frequency speed bins listed also reflect the maximum platform (CCB) and DDR data rate frequency
    supported by production test. Running CCB and/or DDR data rate higher than the limit shown above, although logically possible
    via valid clock ratio setting in some condition, is not supported.
    Table 74. Memory Bus Clocking Specifications
    Characteristic
    Maximum Processor Core Frequency
    Unit
    Notes
    600, 800, 1000, 1250
    Min
    Max
    DDR Memory bus clock speed
    200
    250
    MHz
    1, 2, 3, 4
    Notes:
    1. Caution: The CCB clock to SYSCLK ratio and e500 core to CCB clock ratio settings must be chosen such that the resulting
    SYSCLK frequency, e500 (core) frequency, and CCB clock frequency do not exceed their respective maximum or minimum
    2. The Memory bus clock refers to the chip’s memory controllers’ MCK[0:5] and MCK[0:5] output clocks, running at half of the
    DDR data rate.
    3. In synchronous mode, the memory bus clock speed is half the platform clock frequency. In other words, the DDR data rate is
    the same as the platform (CCB) frequency. If the desired DDR data rate is higher than the platform (CCB) frequency,
    asynchronous mode must be used.
    4. In asynchronous mode, the memory bus clock speed is dictated by its own PLL. See Section 2.23.4, “DDR/DDRCLK PLL
    Ratio.The memory bus clock speed must be less than or equal to the CCB clock rate which in turn must be less than the DDR
    data rate.
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