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    參數(shù)資料
    型號(hào): KMPC8315ECVRAGDA
    廠商: Freescale Semiconductor
    文件頁數(shù): 101/106頁
    文件大?。?/td> 0K
    描述: IC MPU POWERQUICC II 620-PBGA
    標(biāo)準(zhǔn)包裝: 2
    系列: MPC83xx
    處理器類型: 32-位 MPC83xx PowerQUICC II Pro
    速度: 400MHz
    電壓: 1V
    安裝類型: 表面貼裝
    封裝/外殼: 620-BBGA 裸露焊盤
    供應(yīng)商設(shè)備封裝: 620-PBGA(29x29)
    包裝: 托盤
    MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
    94
    Freescale Semiconductor
    Clocking
    24.2
    Core PLL Configuration
    RCWL[COREPLL] selects the ratio between the internal coherent system bus clock (csb_clk) and the e300
    core clock (core_clk). Table 76 shows the encodings for RCWL[COREPLL]. COREPLL values that are
    not listed in Table 76 should be considered as reserved.
    NOTE
    Core VCO frequency = core frequency
    VCO divider
    VCO divider has to be set properly so that the core VCO frequency is in the
    range of 400–800 MHz.
    24.3
    Suggested PLL Configurations
    To simplify the PLL configurations, the MPC8315E might be separated into two clock domains. The first
    domain contain the CSB PLL and the core PLL. The core PLL is connected serially to the CSB PLL, and
    has the csb_clk as its input clock. The clock domains are independent, and each of their PLLs are
    configured separately. Both of the domains has one common input clock. Table 77 shows suggested PLL
    configurations for 33, 25, and 66 MHz input clocks.
    Table 76. e300 Core PLL Configuration
    RCWL[COREPLL]
    core_clk : csb_clk Ratio
    VCO Divider1
    1 Core VCO frequency = core frequency
    VCO divider.
    0–1
    2–5
    6
    nn
    0000
    0
    PLL bypassed
    (PLL off, csb_clk clocks core directly)
    PLL bypassed
    (PLL off, csb_clk clocks core directly)
    11
    nnnn
    nN/A
    N/A
    00
    0001
    01:1
    2
    01
    0001
    01:1
    4
    00
    0001
    1
    1.5:1
    2
    01
    0001
    1
    1.5:1
    4
    00
    0010
    02:1
    2
    01
    0010
    02:1
    4
    00
    0010
    1
    2.5:1
    2
    01
    0010
    1
    2.5:1
    4
    00
    0011
    03:1
    2
    01
    0011
    03:1
    4
    Table 77. Suggested PLL Configurations
    Conf. No.
    SPMF
    Core\PLL
    Input Clock Frequency (MHz) CSB Frequency (MHz) Core Frequency (MHz)
    1
    0100
    0000100
    33.33
    133.33
    266.66
    3
    0010
    0000100
    66.67
    133.33
    266.66
    4
    0100
    0000101
    33.33
    133.33
    333.33
    5
    0101
    0000101
    25
    125
    312.5
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