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  • 參數(shù)資料
    型號(hào): HD404318H
    廠商: Hitachi,Ltd.
    英文描述: 4-bit HMCS400-series microcomputer
    中文描述: 4位HMCS400系列微機(jī)
    文件頁(yè)數(shù): 47/66頁(yè)
    文件大?。?/td> 305K
    代理商: HD404318H
    HD404318 Series
    47
    Table 11
    Transmit Clock Selection
    PMRC
    SMR
    Bit 0
    Bit 2
    Bit 1
    Bit 0
    System Clock Divisor
    Transmit Clock Frequency
    0
    0
    0
    0
    ÷
    2048
    ÷
    512
    ÷
    128
    ÷
    32
    ÷
    8
    ÷
    2
    ÷
    4096
    ÷
    1024
    ÷
    256
    ÷
    64
    ÷
    16
    ÷
    4
    4096t
    cyc
    1024t
    cyc
    256t
    cyc
    64t
    cyc
    16t
    cyc
    4t
    cyc
    8192t
    cyc
    2048t
    cyc
    512t
    cyc
    128t
    cyc
    32t
    cyc
    8t
    cyc
    1
    1
    0
    1
    1
    0
    0
    1
    1
    0
    0
    0
    1
    1
    0
    1
    1
    0
    0
    1
    Bit
    Initial value
    Read/Write
    Bit name
    3
    0
    W
    SMR3
    2
    0
    W
    SMR2
    0
    0
    W
    SMR0
    1
    0
    W
    SMR1
    Serial mode register (SMR: $005)
    0
    1
    0
    1
    0
    1
    0
    1
    0
    1
    0
    1
    0
    1
    SMR2
    SMR0
    SMR1
    SMR3
    0
    1
    R0
    0
    /
    SCK
    Mode Selection
    R0
    0
    SCK
    SCK
    Output
    Input
    Clock Source
    Prescaler
    External clock
    Prescaler
    Division Ratio
    Refer to
    table 11
    Output
    System clock
    Figure 38 Serial Mode Register (SMR)
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