參數(shù)資料
    型號: MPC8572CPXAULD
    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, PBGA1023
    封裝: 33 X 33 MM, PLASTIC, FCBGA-1023
    文件頁數(shù): 122/138頁
    文件大?。?/td> 1502K
    代理商: MPC8572CPXAULD
    MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
    84
    Freescale Semiconductor
    PCI Express
    TTX-EYE-MEDIAN-to-
    MAX-JITTER
    Maximum time
    between the jitter
    median and
    maximum
    deviation from
    the median.
    0.15
    UI
    Jitter is defined as the measurement variation of the
    crossing points (VTX-DIFFp-p = 0 V) in relation to a
    recovered TX UI. A recovered TX UI is calculated
    over 3500 consecutive unit intervals of sample
    data. Jitter is measured using all edges of the 250
    consecutive UI in the center of the 3500 UI used for
    calculating the TX UI. See Notes 2 and 3.
    TTX-RISE, TTX-FALL
    D+/D- TX Output
    Rise/Fall Time
    0.125
    UI
    See Notes 2 and 5
    VTX-CM-ACp
    RMS AC Peak
    Common Mode
    Output Voltage
    ——
    20
    mV
    VTX-CM-ACp = RMS(|VTXD+ + VTXD-|/2 - VTX-CM-DC)
    VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2
    See Note 2
    VTX-CM-DC-ACTIVE-
    IDLE-DELTA
    Absolute Delta of
    DC Common
    Mode Voltage
    During L0 and
    Electrical Idle
    0—
    100
    mV
    |VTX-CM-DC (during L0) - VTX-CM-Idle-DC (During Electrical
    Idle)|<=100 mV
    VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 [L0]
    VTX-CM-Idle-DC = DC(avg) of |VTX-D+ + VTX-D-|/2
    [Electrical Idle]
    See Note 2.
    VTX-CM-DC-LINE-DELTA Absolute Delta of
    DC Common
    Mode between
    D+ and D–
    0—
    25
    mV
    |VTX-CM-DC-D+ - VTX-CM-DC-D-| <= 25 mV
    VTX-CM-DC-D+ = DC(avg) of |VTX-D+|
    VTX-CM-DC-D- = DC(avg) of |VTX-D-|
    See Note 2.
    VTX-IDLE-DIFFp
    Electrical Idle
    differential Peak
    Output Voltage
    0—
    20
    mV
    VTX-IDLE-DIFFp = |VTX-IDLE-D+ -VTX-IDLE-D-| <= 20
    mV
    See Note 2.
    VTX-RCV-DETECT
    The amount of
    voltage change
    allowed during
    Receiver
    Detection
    600
    mV
    The total amount of voltage change that a
    transmitter can apply to sense whether a low
    impedance Receiver is present. See Note 6.
    VTX-DC-CM
    The TX DC
    Common Mode
    Voltage
    0
    3.6
    V
    The allowed DC Common Mode voltage under any
    conditions. See Note 6.
    ITX-SHORT
    TX Short Circuit
    Current Limit
    90
    mA
    The total current the Transmitter can provide when
    shorted to its ground
    TTX-IDLE-MIN
    Minimum time
    spent in
    Electrical Idle
    50
    UI
    Minimum time a Transmitter must be in Electrical
    Idle Utilized by the Receiver to start looking for an
    Electrical Idle Exit after successfully receiving an
    Electrical Idle ordered set
    TTX-IDLE-SET-TO-IDLE
    Maximum time to
    transition to a
    valid Electrical
    idle after sending
    an Electrical Idle
    ordered set
    20
    UI
    After sending an Electrical Idle ordered set, the
    Transmitter must meet all Electrical Idle
    Specifications within this time. This is considered a
    debounce time for the Transmitter to meet
    Electrical Idle after transitioning from L0.
    Table 59. Differential Transmitter (TX) Output Specifications (continued)
    Symbol
    Parameter
    Min
    Nominal
    Max
    Units
    Comments
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