PCF2127 View Datasheet(PDF) - NXP Semiconductors.
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Description
MFG CO.
'PCF2127' PDF : 101 Pages View PDF
NXP Semiconductors
PCF2127
Accurate RTC with integrated quartz crystal for industrial applications
c. If the TSIE bit is active, an interrupt on the INT pin is generated.
The TSF1 and TSF2 flags can be cleared by command; clearing both flags clears the
interrupt. Once TSF2 is cleared, it will only be set again when TS pin is driven to
ground once again.
8.12.2 Timestamp mode
The timestamp function has two different modes selected by the control bit TSM
(timestamp mode) in register Timestp_ctl:
• If TSM is logic 0 (default): in subsequent trigger events without clearing the timestamp
flags, the last timestamp event is stored
• If TSM is logic 1: in subsequent trigger events without clearing the timestamp flags,
the first timestamp event is stored
The timestamp function also depends on the control bit BTSE in register Control_3, see
Section 8.12.4.
PCF2127
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 19 December 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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