• 參數(shù)資料
    型號(hào): MPC855
    廠商: Motorola, Inc.
    英文描述: Family Hardware Specifications
    中文描述: 家庭硬件規(guī)格
    文件頁(yè)數(shù): 19/76頁(yè)
    文件大?。?/td> 857K
    代理商: MPC855
    MOTOROLA
    MPC860 Family Hardware Specifications
    19
    Bus Signal Timing
    B33
    CLKOUT falling edge to GPL
    valid—as requested by control bit
    GxT4 in the corresponding word in
    UPM
    1.50
    6.00
    1.50
    6.00
    1.50
    6.00
    1.50
    6.00
    ns
    B33a CLKOUT rising edge to GPL
    valid—as requested by control bit
    GxT3 in the corresponding word in
    UPM
    7.58
    14.33
    6.25
    13.00
    5.00
    11.75
    3.80
    10.54
    ns
    B34 A(0:31), BADDR(28:30), and D(0:31)
    to CS valid—as requested by control
    bit CST4 in the corresponding word in
    UPM
    5.58
    4.25
    3.00
    1.79
    ns
    B34a A(0:31), BADDR(28:30), and D(0:31)
    to CS valid—as requested by control
    bit CST1 in the corresponding word in
    UPM
    13.15
    10.50
    8.00
    5.58
    ns
    B34b A(0:31), BADDR(28:30), and D(0:31)
    to CS valid—as requested by control
    bit CST2 in the corresponding word in
    UPM
    20.73
    16.75
    13.00
    9.36
    ns
    B35
    A(0:31), BADDR(28:30) to CS
    valid—as requested by control bit
    BST4 in the corresponding word in
    UPM
    5.58
    4.25
    3.00
    1.79
    ns
    B35a A(0:31), BADDR(28:30), and D(0:31)
    to BS valid—as requested by control
    bit BST1 in the corresponding word in
    UPM
    13.15
    10.50
    8.00
    5.58
    ns
    B35b A(0:31), BADDR(28:30), and D(0:31)
    to BS valid—as requested by control
    bit BST2 in the corresponding word in
    UPM
    20.73
    16.75
    13.00
    9.36
    ns
    B36
    A(0:31), BADDR(28:30), and D(0:31)
    to GPL valid—as requested by
    control bit GxT4 in the corresponding
    word in UPM
    5.58
    4.25
    3.00
    1.79
    ns
    B37
    UPWAIT valid to CLKOUT falling
    edge
    9
    6.00
    6.00
    6.00
    6.00
    ns
    B38
    CLKOUT falling edge to UPWAIT
    valid
    9
    1.00
    1.00
    1.00
    1.00
    ns
    B39
    AS valid to CLKOUT rising edge
    10
    7.00
    7.00
    7.00
    7.00
    ns
    B40
    A(0:31), TSIZ(0:1), RD/WR, BURST,
    valid to CLKOUT rising edge
    7.00
    7.00
    7.00
    7.00
    ns
    Table 9-6. Bus Operation Timings (continued)
    Num
    Characteristic
    33 MHz
    40 MHz
    50 MHz
    66 MHz
    Unit
    Min
    Max
    Min
    Max
    Min
    Max
    Min
    Max
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