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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF85063ATL/1 датащи(PDF) 25 Page - NXP Semiconductors |
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PCF85063ATL/1 датащи(HTML) 25 Page - NXP Semiconductors |
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25 / 55 page  NXP Semiconductors PCF85063A Tiny Real-Time Clock/calendar with alarm function and I2C-bus The generation of interrupts from the alarm function is controlled via bit AIE. If bit AIE is enabled, the INT pin follows the condition of bit AF. AF remains set until cleared by command. Once AF has been cleared, it will only be set again when the time increments to match the alarm condition once more. Alarm registers which have their AEN_x bit at logic 1 are ignored. aaa-004433 SECOND ALARM SECOND TIME AEN_S 1 0 AEN_S = 1 example = MINUTE ALARM MINUTE TIME AEN_M = HOUR ALARM HOUR TIME AEN_H set alarm flag AF (1) = DAY ALARM DAY TIME AEN_D = WEEKDAY ALARM WEEKDAY TIME AEN_W = check now signal 1. Only when all enabled alarm settings are matching. It is only on increment to a matched case that the alarm flag is set. Figure 16. Alarm function block diagram 7.6 Timer registers The 8-bit countdown timer at address 10h is controlled by the register Timer_mode at address 11h. 7.6.1 Register Timer_value Bit Symbol Value Description 7 to 0 T[7:0] 0h[1] to FFh countdown timer value[2] Table 33. Timer_value - timer value register (address 10h) bit description [1] Default value. [2] Countdown period in seconds: where T is the countdown value. PCF85063A All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved. Product data sheet Rev. 7.1 — 8 November 2023 25 / 55 |
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