參數(shù)資料
    型號(hào): MPC8248CVRT
    廠商: Motorola, Inc.
    英文描述: MPC8272 PowerQUICC II Family Hardware Specifications
    中文描述: MPC8272的PowerQUICC II系列硬件規(guī)格
    文件頁數(shù): 28/56頁
    文件大小: 539K
    代理商: MPC8248CVRT
    28
    MPC8272 PowerQUICC II Family Hardware Specifications
    PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
    For More Information On This Product,
    Go to: www.freescale.com
    MOTOROLA
    Clock Configuration Modes
    0100_010
    35.7
    50.0
    6
    214.3 300.0
    7
    250.0 350.0
    6
    35.7
    50.0
    0100_011
    31.3
    50.0
    6
    187.5 300.0
    8
    250.0 400.0
    6
    31.3
    50.0
    0101_000
    50.0
    100.0
    2
    100.0 200.0
    2.5
    125.0 250.0
    4
    25.0
    50.0
    0101_001
    50.0
    100.0
    2
    100.0 200.0
    3
    150.0 300.0
    4
    25.0
    50.0
    0101_010
    71.4
    100.0
    2
    142.9 200.0
    3.5
    250.0 350.0
    4
    35.7
    50.0
    0101_011
    62.5
    100.0
    2
    125.0 200.0
    4
    250.0 400.0
    4
    31.3
    50.0
    0101_100
    55.6
    100.0
    2
    111.1 200.0
    4.5
    250.0 450.0
    4
    27.8
    50.0
    0101_101
    71.4
    83.3
    3
    214.3 250.0
    3.5
    250.0 291.7
    5
    42.9
    50.0
    0101_110
    62.5
    83.3
    3
    187.5 250.0
    4
    250.0 333.3
    5
    37.5
    50.0
    0101_111
    55.6
    83.3
    3
    166.7 250.0
    4.5
    250.0 375.0
    5
    33.3
    50.0
    0110_000
    60.0
    120.0
    2.5
    150.0 300.0
    2.5
    150.0 300.0
    6
    25.0
    50.0
    0110_001
    60.0
    120.0
    2.5
    150.0 300.0
    3
    180.0 360.0
    6
    25.0
    50.0
    0110_010
    71.4
    120.0
    2.5
    178.6 300.0
    3.5
    250.0 420.0
    6
    29.8
    50.0
    0110_011
    62.5
    120.0
    2.5
    156.3 300.0
    4
    250.0 480.0
    6
    26.0
    50.0
    0110_100
    60.0
    120.0
    2.5
    150.0 300.0
    4.5
    270.0 540.0
    6
    25.0
    50.0
    0110_101
    60.0
    120.0
    2.5
    150.0 300.0
    5
    300.0 600.0
    6
    25.0
    50.0
    0110_110
    60.0
    120.0
    2.5
    150.0 300.0
    6
    360.0 720.0
    6
    25.0
    50.0
    0111_000
    Reserved
    0111_001
    50.0
    100.0
    3
    150.0 300.0
    3
    150.0 300.0
    6
    25.0
    50.0
    0111_010
    71.4
    100.0
    3
    214.3 300.0
    3.5
    250.0 350.0
    6
    35.7
    50.0
    0111_011
    62.5
    100.0
    3
    187.5 300.0
    4
    250.0 400.0
    6
    31.3
    50.0
    0111_100
    55.6
    100.0
    3
    166.7 300.0
    4.5
    250.0 450.0
    6
    27.8
    50.0
    1000_000
    Reserved
    1000_001
    66.7
    133.3
    3
    200.0 400.0
    3
    200.0 400.0
    8
    25.0
    50.0
    1000_010
    71.4
    133.3
    3
    214.3 400.0
    3.5
    250.0 466.7
    8
    26.8
    50.0
    1000_011
    66.7
    133.3
    3
    200.0 400.0
    4
    266.7 533.3
    8
    25.0
    50.0
    Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
    1, 2
    (continued)
    Mode
    3
    Bus Clock
    (MHz)
    CPM
    Multiplication
    Factor
    4
    CPM Clock
    (MHz)
    CPU
    Multiplication
    Factor
    5
    CPU Clock
    (MHz)
    PCI
    Division
    Factor
    PCI Clock
    (MHz)
    MODCK_H-
    MODCK[1-3]
    Low
    High
    Low
    High
    Low
    High
    Low
    High
    F
    Freescale Semiconductor, Inc.
    n
    .
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