參數(shù)資料
    

    


    


    
型號：
MPC8347ECZUAJF

    

    
廠商：
FREESCALE SEMICONDUCTOR INC

    

    
元件分類：
微控制器/微處理器

    

    
英文描述：
32-BIT, 533 MHz, RISC PROCESSOR, PBGA672

    

    
封裝：
35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, TBGA-672

    

    
文件頁數(shù)：
20/102頁

    

    
文件大小：
1094K

    

    
代理商：
MPC8347ECZUAJF


    

    

    

	
    
    
    

    
    
	
    MPC8347E PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
    24
    Freescale Semiconductor
    Ethernet: Three-Speed Ethernet, MII Management
    Figure 8 shows the GMII transmit AC timing diagram.
    Figure 8. GMII Transmit AC Timing Diagram
    8.2.1.2
    GMII Receive AC Timing Specifications
    Table 22 provides the GMII receive AC timing specifications.
    Table 22. GMII Receive AC Timing Specifications
    At recommended operating conditions with LVDD/OVDD of 3.3 V ± 10%.
    Parameter/Condition
    Symbol1
    Min
    Typ
    Max
    Unit
    RX_CLK clock period
    tGRX
    —8.0
    —
    ns
    RX_CLK duty cycle
    tGRXH/tGRX
    40
    —
    60
    %
    RXD[7:0], RX_DV, RX_ER setup time to RX_CLK
    tGRDVKH
    2.0
    —
    ns
    RXD[7:0], RX_DV, RX_ER hold time to RX_CLK
    tGRDXKH
    0.5
    —
    ns
    RX_CLK clock rise, VIL(min) to VIH(max)
    tGRXR
    ——
    1.0
    ns
    RX_CLK clock fall time, VIH(max) to VIL(min)
    tGRXF
    ——
    1.0
    ns
    Note:
    1. The symbols 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, tGRDVKH symbolizes GMII receive timing
    (GR) with respect to the time data input signals (D) reaching the valid state (V) relative to the tRX clock reference (K) going
    to the high state (H) or setup time. Also, tGRDXKL symbolizes GMII receive timing (GR) with respect to the time data input
    signals (D) went invalid (X) relative to the tGRX clock reference (K) going to the low (L) state or hold time. In general, the clock
    reference symbol is based on three letters representing the clock of a particular function. For example, the subscript of tGRX
    represents the GMII (G) receive (RX) clock. For rise and fall times, the latter convention is used with the appropriate letter:
    R (rise) or F (fall).
    GTX_CLK
    TXD[7:0]
    tGTKHDX
    tGTX
    tGTXH
    tGTXR
    tGTXF
    TX_EN
    TX_ER
    
    
    
    
    
    


    


    

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