參數(shù)資料
    型號: MPC8547EVTAUJA
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: 32-BIT, 1333 MHz, MICROPROCESSOR, PBGA783
    封裝: 29 X 29 MM, 1 MM PITCH, FLIP CHIP, LEAD FREE, PLASTIC, BGA-783
    文件頁數(shù): 65/142頁
    文件大?。?/td> 1504K
    代理商: MPC8547EVTAUJA
    MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
    Freescale Semiconductor
    29
    Enhanced Three-Speed Ethernet (eTSEC)
    Figure 7. FIFO Receive AC Timing Diagram
    8.2.2
    GMII AC Timing Specifications
    This section describes the GMII transmit and receive AC timing specifications.
    8.2.2.1
    GMII Transmit AC Timing Specifications
    Table 26 provides the GMII transmit AC timing specifications.
    Table 26. GMII Transmit AC Timing Specifications
    Parameter/Condition
    Symbol1
    Min
    Typ
    Max
    Unit
    GMII data TXD[7:0], TX_ER, TX_EN setup time
    tGTKHDV
    2.5
    ns
    GTX_CLK to GMII data TXD[7:0], TX_ER, TX_EN delay
    tGTKHDX
    0.5
    5.0
    ns
    GTX_CLK data clock rise time (20%–80%)
    tGTXR
    2
    ——
    1.0
    ns
    GTX_CLK data clock fall time (80%–20%)
    tGTXF
    2
    ——
    1.0
    ns
    Notes:
    1. The symbols used for timing specifications follow the pattern 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, tGTKHDV symbolizes GMII transmit timing
    (GT) with respect to the tGTX clock reference (K) going to the high state (H) relative to the time date input signals (D) reaching
    the valid state (V) to state or setup time. Also, tGTKHDX symbolizes GMII transmit timing (GT) with respect to the tGTX clock
    reference (K) going to the high state (H) relative to the time date input signals (D) going invalid (X) or hold time. Note that, in
    general, the clock reference symbol representation is based on three letters representing the clock of a particular functional.
    For example, the subscript of tGTX represents the GMII(G) transmit (TX) clock. For rise and fall times, the latter convention is
    used with the appropriate letter: R (rise) or F (fall).
    2. Guaranteed by design.
    tFIR
    tFIRH
    tFIRF
    tFIRR
    RX_CLK
    RXD[7:0]
    RX_DV
    RX_ER
    Valid Data
    tFIRDV
    tFIRDX
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