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  • 參數(shù)資料
    型號(hào): MPC8533EVTALFA
    廠商: Freescale Semiconductor
    文件頁(yè)數(shù): 42/112頁(yè)
    文件大?。?/td> 0K
    描述: MPU POWERQUICC 783-PBGA
    標(biāo)準(zhǔn)包裝: 36
    系列: MPC85xx
    處理器類型: 32-位 MPC85xx PowerQUICC III
    速度: 667MHz
    電壓: 0.95 V ~ 1.05 V
    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(pán)
    MPC8533E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 6
    Freescale Semiconductor
    35
    Enhanced Three-Speed Ethernet (eTSEC), MII Management
    8.5.5
    RMII AC Timing Specifications
    This section describes the RMII transmit and receive AC timing specifications.
    8.5.5.1
    RMII Transmit AC Timing Specifications
    The RMII transmit AC timing specifications are in Table 33.
    Figure 19 shows the RMII transmit AC timing diagram.
    Figure 19. RMII Transmit AC Timing Diagram
    Table 33. RMII Transmit AC Timing Specifications
    At recommended operating conditions with L/TVDD of 3.3 V ± 5% or 2.5 V ± 5%.
    Parameter/Condition
    Symbol1
    Min
    Typ
    Max
    Unit
    Notes
    REF_CLK clock period
    tRMT
    15.0
    20.0
    25.0
    ns
    REF_CLK duty cycle
    tRMTH
    35
    50
    65
    %
    REF_CLK peak-to-peak jitter
    tRMTJ
    ——
    250
    ps
    Rise time REF_CLK (20%–80%)
    tRMTR
    1.0
    2.0
    ns
    Fall time REF_CLK (80%–20%)
    tRMTF
    1.0
    2.0
    ns
    REF_CLK to RMII data TXD[1:0], TX_EN delay
    tRMTDX
    1.0
    10.0
    ns
    Note:
    1. The symbols used for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state)(reference)(state) for
    inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tMTKHDX symbolizes MII transmit
    timing (MT) for the time tMTX clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in general,
    the clock reference symbol representation is based on two to three letters representing the clock of a particular functional.
    For example, the subscript of tMTX represents the MII(M) transmit (TX) clock. For rise and fall times, the latter convention is
    used with the appropriate letter: R (rise) or F (fall).
    REF_CLK
    TXD[1:0]
    tRMTDX
    tRMT
    tRMTH
    tRMTR
    tRMTF
    TX_EN
    TX_ER
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