參數(shù)資料
    型號： M3720-8
    廠商： Electronic Theatre Controls, Inc.
    英文描述： 1 KEY 1 SOUND
    中文描述： 1鍵1聲
    文件頁數(shù)： 44/121頁
    文件大?。?/td> 1907K
    代理商： M3720-8
    MITSUBISHI MICROCOMPUTERS
    M37207MF-XXXSP/FP, M37207M8-XXXSP
    M37207EFSP/FP
    SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
    and ON-SCREEN DISPLAY CONTROLLER
    44
    A-D COMPARATOR
    A-D comparator consists of 6-bit D-A converter and comparator. A-D
    comparator block diagram is shown in Figure 40.
    The reference voltage “V
    ref
    ” for D-A conversion is set by bits 0 to 5 of
    the A-D control register 2 (address 020A
    16
    ).
    The comparison result of the analog input voltage and the reference
    voltage “V
    ref
    ” is stored in bit 4 of the A-D control register 1 (address
    00EF
    16
    ).
    For A-D comparison, set “0” to corresponding bits of the direction
    register to use ports as analog input pins. Write the data for select of
    analog input pins to bits 0 to 2 of the A-D control register 1 and write
    the digital value corresponding to V
    ref
    to be compared to the bits 0 to
    5 A-D control register 2. The voltage comparison starts by writing to
    the A-D control register 2, and it is completed after 16 machine cycles
    (NOP instruction
    8).
    Fig. 40. A-D Comparator Block Diagram
    A-D control register 1
    Bits 0 to 2
    Comparator control
    Data bus
    Bit 4
    Switch tree
    A-D control register 2
    Resistor ladder
    Compa-
    rator
    Analog
    signal
    switch
    Bit 5
    Bit 4
    Bit 3
    Bit 2
    Bit 1
    Bit 0
    A-D control register 1
    AD1
    AD2
    AD3
    AD4
    AD5
    AD6
    AD7
    AD8
    相關(guān)PDF資料
    PDF描述
    M3720-9 1 KEY 1 SOUND
    M37207EFSP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER and ON-SCREEN DISPLAY CONTROLLER
    M37207M8 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER and ON-SCREEN DISPLAY CONTROLLER
    M37207MF Single Chip 8 Bits COMS Microcomputer(8位單片機(jī))
    M37207EFFP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER and ON-SCREEN DISPLAY CONTROLLER
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    M3720-9 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1 KEY 1 SOUND
    M37210E4 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
    M37210E4-801FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
    M37210E4FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
    M37210E4SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
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