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    參數(shù)資料
    型號: HD404384
    廠商: Hitachi,Ltd.
    英文描述: Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    中文描述: 低電壓如同在微機(jī)芯片的A / D轉(zhuǎn)換器(帶片上的A / D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    文件頁數(shù): 52/162頁
    文件大小: 482K
    代理商: HD404384
    HD404374/HD404384/HD404389/HD404082/HD404084 Series
    52
    Direct transition from subactive to active mode (Applies to HD404374 Series):
    A direct transition can be made from subactive mode to active mode by controlling the direct transfer on
    flag (DTON: $020,3) and low speed on flag (LSON: $020,0). The procedure is shown below.
    (a) Set LSON = 0 and DTON = 1 in subactive mode.
    (b) Execute a STOP or SBY instruction.
    (c) After the lapse of the MCU internal processing time and the oscillation settling time, the MCU
    automatically switches from subactive mode to active mode (figure 16).
    Notes: 1. The DTON flag ($020,3) can be set in only subactive mode. It is always in the reset state in
    active mode.
    2. The condition for transition time T
    D
    from the subactive mode to active mode is as follows:
    t
    RC
    < T
    D
    < T + t
    RC
    .
    Subactive mode
    STOP/SBY
    instruction execution
    MCU internal
    processing time
    Oscillation
    stabilization time
    Active mode
    (Set LSON =0, DTON =1)
    Interrupt strobe
    Direct transition
    completion timing
    T
    T
    D
    t
    RC
    T: Interrupt frame period
    t
    RC
    : Oscillation settling time
    T
    D
    : Direct transition time
    Figure 16 Direct Transition Timing
    MCU operation sequence:
    The MCU operates in accordance with the flowchart shown in figure 17.
    RESET
    input is asynchronous
    input, and the MCU immediately enters the reset state upon
    RESET
    input, regardless of its current state.
    In the low-power mode operation sequence, if a STOP/SBY instruction is executed while the IE flag is
    cleared and the interrupt flag is set, releasing the relevant interrupt mask, the STOP/SBY instruction is
    canceled (regarded as NOP) and the next instruction is executed. Therefore, when executing a STOP/SBY
    instruction, all interrupt flags must be cleared, or interrupts masked, beforehand.
    相關(guān)PDF資料
    PDF描述
    HD404388 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    HD404389 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    HD404081 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    HD407A4374 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    HD407A4384 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    HD404384FT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
    HD404384H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
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    HD404388FT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
    HD404389 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HMCS43XXFamily User's Manual/Device