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    參數(shù)資料
    型號: M30612MCA
    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): 8/197頁
    文件大?。?/td> 2673K
    代理商: M30612MCA
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    Mitsubishi microcomputers
    M16C / 61 Group
    SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
    Pin Description
    8
    V
    CC
    , V
    SS
    CNV
    SS
    X
    IN
    X
    OUT
    BYTE
    AV
    CC
    AV
    SS
    V
    REF
    P0
    0
    to P0
    7
    D
    0
    to D
    7
    P1
    0
    to P1
    7
    D
    8
    to D
    15
    P2
    0
    to P2
    7
    A
    0
    to A
    7
    A
    0
    /D
    0
    to
    A
    7
    /D
    7
    A
    0
    , A
    1
    /D
    0
    to A
    7
    /D
    6
    P3
    0
    to P3
    7
    A
    8
    to A
    15
    A
    8
    /D
    7
    ,
    A
    9
    to A
    15
    P4
    0
    to P4
    7
    Signal name
    Power supply
    input
    CNV
    SS
    Reset input
    Clock input
    Clock output
    External data
    bus width
    select input
    Analog power
    supply input
    Reference
    voltage input
    I/O port P0
    I/O port P1
    I/O port P2
    I/O port P3
    I/O port P4
    Supply 2.7 to 5.5 V to the V
    CC
    pin. Supply 0 V to the V
    SS
    pin.
    Function
    This pin switches between processor modes. Connect it to the
    V
    SS
    pin when operating in single-chip or memory expansion mode.
    Connect it to the V
    CC
    pin when in microprocessor mode.
    A “L” on this input resets the microcomputer.
    These pins are provided for the main clock generating circuit.Connect
    a ceramic resonator or crystal between the X
    IN
    and the X
    OUT
    pins. To
    use an externally derived clock, input it to the X
    IN
    pin and leave the
    X
    OUT
    pin open.
    This pin selects the width of an external data bus. A 16-bit width is
    selected when this input is “L”; an 8-bit width is selected when this
    input is “H”. This input must be fixed to either “H” or “L”. When
    operating in single-chip mode,connect this pin to V
    SS
    .
    This pin is a power supply input for the A-D converter. Connect this
    pin to V
    CC
    .
    This pin is a power supply input for the A-D converter. Connect this
    pin to V
    SS
    .
    This pin is a reference voltage input for the A-D converter.
    This is an 8-bit CMOS I/O port. It has an input/output port direction
    register that allows the user to set each pin for input or output
    individually. When used for input in single-chip mode, the port can be
    set to have or not have a pull-up resistor in units of four bits by
    software. In memory expansion and microprocessor modes, selection
    of the internal pull-resistor is not available.
    When set as a separate bus, these pins input and output data (D
    0
    –D
    7
    ).
    This is an 8-bit I/O port equivalent to P0.
    When set as a separate bus, these pins input and output data
    (D
    8
    –D
    15
    ).
    This is an 8-bit I/O port equivalent to P0.
    These pins output 8 low-order address bits (A
    0
    –A
    7
    ).
    If the external bus is set as an 8-bit wide multiplexed bus, these pins
    input and output data (D
    0
    –D
    7
    ) and output 8 low-order address bits
    (A
    0
    –A
    7
    ) separated in time by multiplexing.
    If the external bus is set as a 16-bit wide multiplexed bus, these pins
    input and output data (D
    0
    –D
    6
    ) and output address (A
    1
    –A
    7
    ) separated
    in time by multiplexing. They also output address (A
    0
    ).
    This is an 8-bit I/O port equivalent to P0.
    These pins output 8 middle-order address bits (A
    8
    –A
    15
    ).
    If the external bus is set as a 16-bit wide multiplexed bus, these pins
    input and output data (D
    7
    ) and output address (A
    8
    ) separated in time
    by multiplexing. They also output address (A
    9
    –A
    15
    ).
    This is an 8-bit I/O port equivalent to P0.
    Pin name
    Input
    Input
    Input
    Output
    Input
    Input
    Input/output
    Input/output
    Input/output
    Input/output
    I/O type
    Analog power
    supply input
    Input/output
    Output
    Input/output
    Output
    Input/output
    Input/output
    Output
    Input/output
    Output
    Input/output
    Output
    Output
    CS
    0
    to CS
    3
    ,
    A
    16
    to A
    19
    These pins output CS
    0
    –CS
    3
    signals and A
    16
    –A
    19
    . CS
    0
    –CS
    3
    are chip
    select signals used to specify an access space. A
    16
    –A
    19
    are 4 high-
    order address bits.
    RESET
    Pin Description
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