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    參數(shù)資料
    型號(hào): TPS65930A2ZCHR
    廠商: TEXAS INSTRUMENTS INC
    元件分類: 消費(fèi)家電
    英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
    封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
    文件頁數(shù): 6/115頁
    文件大小: 1232K
    代理商: TPS65930A2ZCHR
    50-msclock
    50ms
    Event1detectedon32K
    clocksynchronizedwith
    50-msclock
    Event1
    Debouncedafter50ms
    50ms+dT
    Event1
    Event2
    32Kclock
    31 ms
    Event2
    Debouncedafter50ms+dT
    50ms
    dT
    037-029
    SWCS037G
    – MAY 2008 – REVISED APRIL 2011
    13
    Debouncing Time
    Table 13-1 lists the characteristics of debouncing.
    Table 13-1. Debouncing
    Debouncing Functions
    Block
    Programmable
    Debouncing Time
    Default
    USB plug detection
    USB
    No
    9x50 ms
    0 to 250 ms
    Plug/unplug detection VBUS(1)
    USB
    Yes
    (32/32468-second
    28 ms
    steps)
    0 to 250 ms
    Plug/unplug detection ID(2)
    USB
    Yes
    (32/32468-second
    50 ms
    steps)
    Debouncing function interrupt generation
    Power
    Yes
    0 to 250 ms
    30 ms
    debounce for VBUS and ID(3)
    Hot-die detection
    Thermistor
    No
    60
    μs
    60
    μs
    Thermal shutdown detection
    No
    60
    μs
    60
    μs
    PWRON(4)
    Start/stop button
    No
    31.25 ms
    NRESWARM
    Button reset
    No
    60
    μs
    60
    μs
    SIM card plug/unplug
    GPIO
    Yes
    0 or 30 ms
    ± 1 ms
    0 ms
    MMC1 (plug/unplug)
    GPIO
    Yes
    0 or 30 ms
    ± 1 ms
    0 ms
    (1)
    Programmable in the VBUS_DEBOUNCE register
    (2)
    Programmable in the ID_DEBOUNCE register
    (3)
    Programmable in the RESERVED_E[2:0] CFG_VBUSDEB register
    (4)
    The PWRON signal is debounced 1024*CLK32K (maximum 1026*CLK32K) falling edge in master mode.
    Figure 13-1 is a sample debouncing sequence chronogram.
    Figure 13-1. Debouncing Sequence Chronogram Example
    Event1 is correctly debounced after 5 ms. Event2 is debounced after 50ms + dT because the capture of
    the event is considered after the next rising edge of the 50-ms clock.
    Copyright
    2008–2011, Texas Instruments Incorporated
    Debouncing Time
    103
    focus.ti.com: TPS65930/TPS65920
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