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    參數(shù)資料
    型號(hào): M38005E1-XXXFP
    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): 30/173頁
    文件大?。?/td> 4203K
    代理商: M38005E1-XXXFP
    1-16
    HARDWARE
    3800 GROUP USER’S MANUAL
    Pin
    P0
    0
    – P0
    7
    P1
    0
    – P1
    7
    P2
    0
    – P2
    7
    P3
    0
    – P3
    7
    P4
    0
    ,P4
    1
    P4
    2
    /INT
    0
    ,
    P4
    3
    /INT
    1
    P4
    4
    /R
    X
    D,
    P4
    5
    /T
    X
    D,
    P4
    6
    /S
    CLK
    ,
    P4
    7
    /S
    RDY
    P5
    0
    /INT
    2
    ,
    P5
    1
    /INT
    3
    ,
    P5
    2
    /INT
    4
    ,
    P5
    3
    /INT
    5
    P5
    4
    /CNTR
    0
    ,
    P5
    5
    /CNTR
    1
    P5
    6
    ,P5
    7
    P6
    0
    – P6
    7
    P7
    0
    , P7
    1
    Name
    Port P0
    Port P1
    Port P2
    Port P3
    Port P4
    Port P5
    Port P6
    Port P7
    Input/Output
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    Input/output,
    individual bits
    I/O Format
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    CMOS 3-state output
    CMOS compatible
    input level
    Non-Port Function
    Address low-order byte
    output
    Address high-order
    byte output
    Data bus I/O
    Control signal I/O
    External interrupt input
    Serial I/O function I/O
    External interrupt input
    Timer X and Timer Y
    function I/O
    Ref.No.
    (1)
    (2)
    (3)
    (4)
    (5)
    (6)
    (2)
    (7)
    (1)
    Table 6. List of I/O port functions
    Related SFRs
    CPU mode register
    CPU mode register
    CPU mode register
    CPU mode register
    Interrupt edge selection
    register
    Serial I/O control
    register
    UART control register
    Interrupt edge selection
    register
    Timer XY mode register
    Note 1
    : For details of the functions of ports P0 to P3 in modes other than single-chip mode, and how to use double-function ports as func-
    tion I/O ports, refer to the applicable sections.
    2
    : Make sure that the input level at each pin is either 0 V or V
    CC
    during execution of the STP instruction.
    When an input level is at an intermediate potential, a current will flow from V
    CC
    to V
    SS
    through the input-stage gate.
    I/O Ports
    Direction registers
    The 3800 group has 58 programmable I/O pins arranged in eight
    I/O ports (ports P0 to P7). The I/O ports have direction registers
    which determine the input/output direction of each individual pin.
    Each bit in a direction register corresponds to one pin, each pin
    can be set to be input port or output port.
    When “0” is written to the bit corresponding to a pin, that pin be-
    comes an input pin. When “1” is written to that bit, that pin be-
    comes an output pin.
    If data is read from a pin which is set to output, the value of the
    port output latch is read, not the value of the pin itself. Pins set to
    input are floating. If a pin set to input is written to, only the port
    output latch is written to and the pin remains floating.
    FUNCTIONAL DESCRIPTION
    相關(guān)PDF資料
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