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PCF85263ATL/A Datasheet(PDF) 28 Page - NXP Semiconductors |
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PCF85263ATL/A Datasheet(HTML) 28 Page - NXP Semiconductors |
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28 / 92 page  NXP Semiconductors PCF85263A Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus TS pin(1) t1 t2 t3 t4 t5 FE, LE LE LE FE, LE LE TSR2 = t1 TSR2 = t2 TSR2 set to last TS pin event, LE TSR1 set to first TS pin event, FE TSR2 = t3 TSR2 = t4 TSR2 = t5 TSR3 = t1 no change no change no change TSR3 = t4 event type event time aaa-009604 timestamp1 flag, TSR1F flag cleared by interface 1. TS pin set to active HIGH (TSL = 0), see register Pin_IO (address 27h). Figure 19. Example TS pin driven timestamp The recorded time is stored in the associated timestamp register. The time format depends on the RTC mode. The timestamp registers follows the time format of the time registers. Bit positions labeled as - are not implemented and return 0 when read. Upper-digit (ten’s place) Digit (unit place) Address Register name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 RTC timestamp1 (TSR1) 11h TSR1_seconds - 0 to 5 0 to 9 12h TSR1_minutes - 0 to 5 0 to 9 AMPM 0 to 1 0 to 9 13h TSR1_hours - - 0 to 2 0 to 9 14h TSR1_days - - 0 to 3 0 to 9 15h TSR1_months - - - 0 to 1 0 to 9 16h TSR1_years 0 to 9 0 to 9 RTC timestamp2 (TSR2) 17h TSR2_seconds - 0 to 5 0 to 9 18h TSR2_minutes - 0 to 5 0 to 9 AMPM 0 to 1 0 to 9 19h TSR2_hours - - 0 to 2 0 to 9 1Ah TSR2_days - - 0 to 3 0 to 9 1Bh TSR2_months - - - 0 to 1 0 to 9 1Ch TSR2_years 0 to 9 0 to 9 RTC timestamp3 (TSR3) 1Dh TSR3_seconds - 0 to 5 0 to 9 Table 20. Timestamp registers in RTC mode (RTCM = 0) PCF85263A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 5 — 1 February 2021 28 / 92 |
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