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PCA2129T/Q900/2 Fiches technique(PDF) 32 Page - NXP Semiconductors

No de pièce PCA2129T/Q900/2
Description  Automotive accurate RTC with integrated quartz crystal
PDF  84 Pages
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Fabricant  NXP [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA2129T/Q900/2 Fiches technique(HTML) 32 Page - NXP Semiconductors

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PCA2129
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 5 — 19 December 2014
32 of 84
NXP Semiconductors
PCA2129
Automotive accurate RTC with integrated quartz crystal
8.9 Alarm function
When one or more of the alarm bit fields are loaded with a valid second, minute, hour, day,
or weekday and its corresponding alarm enable bit (AE_x) is logic 0, then that information
is compared with the actual second, minute, hour, day, and weekday (see Figure 16).
The generation of interrupts from the alarm function is described in Section 8.12.4.
(1) Only when all enabled alarm settings are matching.
Fig 16. Alarm function block diagram



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