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PCF2129T Datasheet(PDF) 7 Page - NXP Semiconductors |
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PCF2129T Datasheet(HTML) 7 Page - NXP Semiconductors |
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7 / 73 page  xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx Table 5. Register overview Bit positions labeled as - are not implemented and will return 0 when read. Bits labeled as T must always be written with logic 0. Bits labeled as X are undefined at power-on and unchanged by subsequent resets. Address Register name Bit Reset value Reference 7 6 5 4 3 2 1 0 Control registers 00h Control_1 EXT_ TEST TSTOP TSF1 POR_ OVRD 12_24 MI SI 0000 0000 Table 6 on page 9 01h Control_2 MSF WDTF TSF2 AF T TSIE AIE T 0000 0000 Table 7 on page 10 02h Control_3 PWRMNG[2:0] BTSE BF BLF BIE BLIE 0000 0000 Table 8 on page 11 Time and date registers 03h Seconds OSF SECONDS (0 to 59) 1XXX XXXX Table 16 on page 24 04h Minutes - MINUTES (0 to 59) - XXX XXXX Table 18 on page 24 05h Hours - - AMPM HOURS (1 to 12) in 12 h mode - - XX XXXX Table 19 on page 25 HOURS (0 to 23) in 24 h mode - - XX XXXX 06h Days - - DAYS (1 to 31) - - XX XXXX Table 20 on page 25 07h Weekdays -- ---WEEKDAYS (0 to 6) - - - - - XXX Table 21 on page 25 08h Months - - - MONTHS (1 to 12) - - - X XXXX Table 23 on page 26 09h Years YEARS (0 to 99) XXXX XXXX Table 25 on page 26 Alarm registers 0Ah Second_alarm AE_S SECOND_ALARM (0 to 59) 1XXX XXXX Table 26 on page 28 0Bh Minute_alarm AE_M MINUTE_ALARM (0 to 59) 1XXX XXXX Table 27 on page 29 0Ch Hour_alarm AE_H - AMPM HOUR_ALARM (1 to 12) in 12 h mode 1 - XX XXXX Table 28 on page 29 HOUR_ALARM (0 to 23) in 24 h mode 1 - XX XXXX 0Dh Day_alarm AE_D - DAY_ALARM (1 to 31) 1 - XX XXXX Table 29 on page 29 0Eh Weekday_alarm AE_W - ---WEEKDAY_ALARM (0 to 6) 1 - - - - XXX Table 30 on page 30 CLKOUT control register 0Fh CLKOUT_ctl TCR[1:0] ---COF[2:0] 00 - - - 000 Table 9 on page 12 Watchdog registers 10h Watchdg_tim_ctl WD_CD T TI_TP ---TF[1:0] 000 - - - 11 Table 31 on page 31 11h Watchdg_tim_val WATCHDG_TIM_VAL[7:0] XXXX XXXX Table 32 on page 31 Timestamp registers 12h Timestp_ctl TSM TSOFF - 1_O_16_TIMESTP[4:0] 00 - X XXXX Table 38 on page 36 |
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