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    參數(shù)資料
    型號: M30201M2T
    廠商: Mitsubishi Electric Corporation
    英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
    中文描述: 單片16位CMOS微機
    文件頁數(shù): 14/159頁
    文件大?。?/td> 2319K
    代理商: M30201M2T
    Unde
    Reset
    deeopmen
    Mitsubishi microcomputers
    M30201 Group
    SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
    14
    Figure 1.12. Reset sequence
    Reset
    There are two kinds of resets; hardware and software. In both cases, operation is the same after the reset.
    (See “Software Reset” for details of software resets.) This section explains on hardware resets.
    When the supply voltage is in the range where operation is guaranteed, a reset is effected by holding the
    reset pin level “L” (0.2V
    CC
    max.) for at least 20 cycles. When the reset pin level is then returned to the “H”
    level while main clock is stable, the reset status is cancelled and program execution resumes from the
    address in the reset vector table.
    Figure 1.11 shows the example reset circuit. Figure 1.12 shows the reset sequence.
    Figure 1.11. Example reset circuit
    RESET
    V
    CC
    0.8V
    RESET
    V
    CC
    0V
    0V
    5V
    5V
    4.0V
    Example when V
    CC
    = 5V
    .
    BCLK
    (Internal clock)
    Address
    (Internal address
    signal)
    BCLK 24cycles
    FFFFC
    16
    FFFFE
    16
    Content of reset vector
    X
    IN
    RESET
    More than 20 cycles are needed
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