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BQ4285Q- Datasheet(PDF) 10 Page - Texas Instruments |
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BQ4285Q- Datasheet(HTML) 10 Page - Texas Instruments |
10 / 27 page DSE - Daylight Saving Enable 7654 3 210 ---- - -- DSE This bit enables daylight-saving time adjustments when written to 1: s On the last Sunday in October, the first time the bq4285 increments past 1:59:59 AM, the time falls back to 1:00:00 AM. s On the first Sunday in April, the time springs forward from 2:00:00 AM to 3:00:00 AM. HF - Hour Format 7654 3 210 ---- - - HF - This bit selects the time-of-day and alarm hour format: 1 = 24-hour format 0 = 12-hour format DF - Data Format 7654 3 210 ---- - DF -- This bit selects the numeric format in which the time, alarm, and calendar bytes are represented: 1 = Binary 0 = BCD SQWE - Square-Wave Enable 7654 3 210 ---- SQWE - - - This bit enables the square-wave output: 1 = Enabled 0 = Disabled and held low UIE - Update Cycle Interrupt Enable 7654 3 210 --- UIE - --- This bit enables an interrupt request due to an update ended interrupt event: 1 = Enabled 0 = Disabled The UIE bit is automatically cleared when the UTI bit equals 1. AIE - Alarm Interrupt Enable 7654 3 210 -- AIE - - --- This bit enables an interrupt request due to an alarm interrupt event: 1 = Enabled 0 = Disabled PIE - Periodic Interrupt Enable 7654 3 210 - PIE -- - --- This bit enables an interrupt request due to a periodic interrupt event: 1 = Enabled 0 = Disabled UTI - Update Transfer Inhibit 7654 3 210 UTI --- - --- This bit inhibits the transfer of RTC bytes to the user buffer: 1 = Inhibits transfer and clears UIE 0 = Allows transfer 10 bq4285 |
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