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    參數(shù)資料
    型號: MPC8548HXAVJA
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: 32-BIT, 1500 MHz, MICROPROCESSOR, CBGA783
    封裝: 29 X 29 MM, 1 MM PITCH, FLIP CHIP, CERAMIC, BGA-783
    文件頁數(shù): 108/142頁
    文件大?。?/td> 1504K
    代理商: MPC8548HXAVJA
    MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
    68
    Freescale Semiconductor
    PCI Express
    15.3
    SerDes Transmitter and Receiver Reference Circuits
    Figure 47 shows the reference circuits for SerDes data lane’s transmitter and receiver.
    Figure 47. SerDes Transmitter and Receiver Reference Circuits
    The DC and AC specification of SerDes data lanes are defined in each interface protocol section below
    (PCI Express, Serial Rapid IO, or SGMII) in this document based on the application usage:
    Note that external an AC coupling capacitor is required for the above three serial transmission protocols
    with the capacitor value defined in the specification of each protocol section.
    16 PCI Express
    This section describes the DC and AC electrical specifications for the PCI Express bus of the MPC8548E.
    16.1
    DC Requirements for PCI Express SD_REF_CLK and
    SD_REF_CLK
    For more information, see Section 15.2, “SerDes Reference Clocks.”
    16.2
    AC Requirements for PCI Express SerDes Clocks
    Table 51 lists the AC requirements for the PCI Express SerDes clocks.
    Table 51. SD_REF_CLK and SD_REF_CLK AC Requirements
    Symbol
    Parameter Description
    Min
    Typ
    Max
    Unit
    Notes
    tREF
    REFCLK cycle time
    10
    ns
    1
    tREFCJ
    REFCLK cycle-to-cycle jitter. Difference in the period of any two
    adjacent REFCLK cycles.
    100
    ps
    tREFPJ
    Phase jitter. Deviation in edge location with respect to mean edge
    location.
    –50
    50
    ps
    Note:
    1. Typical based on
    PCI Express Specification 2.0.
    SD_TX
    n
    SD_TX
    n
    SD_RX
    n
    SD_RX
    n
    50
    Ω
    Receiver
    Transmitter
    50
    Ω
    50
    Ω
    50
    Ω
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
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    MPC8548PXAQGD 功能描述:微處理器 - MPU PQ38 PB ST NE 1000 R3.0 RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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