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  • 參數(shù)資料
    型號: MPC8248ZQPIEA
    廠商: Freescale Semiconductor
    文件頁數(shù): 30/61頁
    文件大小: 0K
    描述: IC MPU POWERQUICC II 516-PBGA
    標準包裝: 40
    系列: MPC82xx
    處理器類型: 32-位 MPC82xx PowerQUICC II
    速度: 300MHz
    電壓: 1.5V
    安裝類型: 表面貼裝
    封裝/外殼: 516-BBGA
    供應商設備封裝: 516-FPBGA(27x27)
    包裝: 托盤
    MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 3
    36
    Freescale Semiconductor
    Clock Configuration Modes
    7.2
    PCI Agent Mode
    These tables show configurations for PCI agent mode. The frequency values listed are for the purpose of
    illustration only. Users must select a mode and input bus frequency so that the resulting configuration does
    not exceed the frequency rating of the user’s device. Note that in PCI agent mode the input clock is PCI
    clock.
    6 CPM_CLK/PCI_CLK ratio. When PCI_MODCK = 1, the ratio of CPM_CLK/PCI_CLK should be calculated from
    PCIDF as follows:
    PCIDF = 3 > CPM_CLK/PCI_CLK = 4
    PCIDF = 5 > CPM_CLK/PCI_CLK = 6
    PCIDF = 7 > CPM_CLK/PCI_CLK = 8
    PCIDF = 9 > CPM_CLK/PCI_CLK = 5
    PCIDF = B > CPM_CLK/PCI_CLK = 6
    Table 19. Clock Configurations for PCI Agent Mode (PCI_MODCK=0)1,2
    Mode3
    PCI Clock
    (MHz)
    CPM
    Multiplication
    Factor4
    CPM Clock
    (MHz)
    CPU
    Multiplication
    Factor5
    CPU Clock
    (MHz)
    Bus
    Division
    Factor
    Bus Clock
    (MHz)
    MODCK_H-
    MODCK[1-3]
    Low
    High
    Low
    High
    Low
    High
    Low
    High
    Default Modes (MODCK_H=0000)
    0000_000
    60.0
    66.7
    2
    120.0 133.3
    2.5
    150.0 166.7
    2
    60.0
    66.7
    0000_001
    50.0
    66.7
    2
    100.0 133.3
    3
    150.0 200.0
    2
    50.0
    66.7
    0000_010
    50.0
    66.7
    3
    150.0 200.0
    3
    150.0 200.0
    3
    50.0
    66.7
    0000_011
    50.0
    66.7
    3
    150.0 200.0
    4
    200.0 266.6
    3
    50.0
    66.7
    0000_100
    50.0
    66.7
    3
    150.0 200.0
    3
    180.0 240.0
    2.5
    60.0
    80.0
    0000_101
    50.0
    66.7
    3
    150.0 200.0
    3.5
    210.0 280.0
    2.5
    60.0
    80.0
    0000_110
    50.0
    66.7
    4
    200.0 266.6
    3.5
    233.3 311.1
    3
    66.7
    88.9
    0000_111
    50.0
    66.7
    4
    200.0 266.6
    3
    240.0 320.0
    2.5
    80.0
    106.7
    Full Configuration Modes
    0001_001
    60.0
    66.7
    2
    120.0 133.3
    5
    150.0 166.7
    4
    30.0
    33.3
    0001_010
    50.0
    66.7
    2
    100.0 133.3
    6
    150.0 200.0
    4
    25.0
    33.3
    0001_011
    50.0
    66.7
    2
    100.0 133.3
    7
    175.0 233.3
    4
    25.0
    33.3
    0001_100
    50.0
    66.7
    2
    100.0 133.3
    8
    200.0 266.6
    4
    25.0
    33.3
    0010_001
    50.0
    66.7
    3
    150.0 200.0
    3
    180.0 240.0
    2.5
    60.0
    80.0
    0010_010
    50.0
    66.7
    3
    150.0 200.0
    3.5
    210.0 280.0
    2.5
    60.0
    80.0
    0010_011
    50.0
    66.7
    3
    150.0 200.0
    4
    240.0 320.0
    2.5
    60.0
    80.0
    0010_100
    50.0
    66.7
    3
    150.0 200.0
    4.5
    270.0 360.0
    2.5
    60.0
    80.0
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