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  • 參數(shù)資料
    型號: M38005S8-XXXSP
    廠商: Mitsubishi Electric Corporation
    元件分類: DC/DC變換器
    英文描述: 1 watt dc-dc converters
    中文描述: 1瓦的DC - DC轉(zhuǎn)換器
    文件頁數(shù): 40/173頁
    文件大?。?/td> 4203K
    代理商: M38005S8-XXXSP
    1-26
    HARDWARE
    3800 GROUP USER’S MANUAL
    3.0V (Note 1)
    0.6V (Note 2)
    0V
    0V
    Power source
    voltage
    Reset input
    voltage
    V
    CC
    RESET
    V
    SS
    M51953AL
    4
    5
    1
    3
    0.1
    μ
    F
    3800 group
    Note 1 : Extended operating temperature version : 4.0V
    Note 2 : Extended operating temperature version : 0.8V
    Reset Circuit
    To reset the microcomputer, the RESET pin should be held at an
    “L” level for 2
    μ
    s or more. Then the RESET pin is returned to an “H”
    level (the power source voltage should be between 3.0 V and 5.5
    V, and between 4.0 V and 5.5 V for extended operating tempera-
    ture version), reset is released. Internal operation does not begin
    until after 8 to 13 X
    IN
    clock cycles are completed. After the reset is
    completed, the program starts from the address contained in ad-
    dress FFFD
    16
    (high-order byte) and address FFFC
    16
    (low-order
    byte).
    Make sure that the reset input voltage is less than 0.6 V for V
    CC
    of
    3.0 V (Extended operating temperature version: the reset input
    voltage is less than 0.8 V for V
    CC
    of 4.0 V).
    Fig. 23 Internal status of microcomputer after reset
    Fig. 22 Example of reset circuit
    FUNCTIONAL DESCRIPTION
    0
    Note.
    : Undefined
    8
    : The initial values of CM
    1
    are determined by the level at the
    CNV
    SS
    pin.
    The contents of all other registers and RAM are undefined
    after a reset, so they must be initialized by software.
    Register contents
    (0001
    16
    )
    Timer 2
    Port P0 direction register
    Port P1 direction register
    Port P2 direction register
    Port P3 direction register
    Port P4 direction register
    Port P5 direction register
    Port P6 direction register
    Port P7 direction register
    Serial I/O status register
    Timer XY mode register
    Serial I/O control register
    UART control register
    Timer 1
    (1)
    (2)
    (3)
    (4)
    (5)
    (6)
    (7)
    (8)
    (9)
    (10)
    (11)
    (12)
    (13)
    (14)
    (15)
    (16)
    (17)
    (18)
    (19)
    (20)
    (21)
    (22)
    (23)
    (24)
    (25)
    (26)
    (27)
    (0003
    16
    )
    (0005
    16
    )
    (0007
    16
    )
    (0009
    16
    )
    (000B
    16
    )
    (000D
    16
    )
    (000F
    16
    )
    (0019
    16
    )
    (001A
    16
    )
    (001B
    16
    )
    (0020
    16
    )
    (0021
    16
    )
    (0022
    16
    )
    (0023
    16
    )
    (0024
    16
    )
    (0025
    16
    )
    (0026
    16
    )
    (0027
    16
    )
    (003A
    16
    )
    (003B
    16
    )
    (003C
    16
    )
    (003D
    16
    )
    (003E
    16
    )
    Address
    Prescaler 12
    Prescaler X
    Timer X
    Prescaler Y
    Timer Y
    Interrupt edge selection register
    CPU mode register
    Interrupt request register 1
    Interrupt request register 2
    Interrupt control register 1
    Interrupt control register 2
    Processor status register
    Program counter
    00
    16
    00
    16
    00
    16
    00
    16
    0
    0 0 0 0 0
    0
    8
    00
    16
    FF
    16
    FF
    16
    FF
    16
    FF
    16
    00
    16
    FF
    16
    01
    16
    FF
    16
    00
    16
    00
    16
    00
    16
    1
    1 1 0 0 0
    0
    0
    0
    1
    0 0
    0
    0
    0
    00
    16
    00
    16
    00
    16
    Contents of address FFFC
    16
    1
    (PS)
    (PC
    H
    )
    (PC
    L
    )
    Contents of address FFFD
    16
    00
    16
    00
    16
    00
    16
    (003F
    16
    )
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