PC8523-1(2012) Просмотр технического описания (PDF) - NXP Semiconductors.
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PC8523-1 Datasheet PDF : 74 Pages
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NXP Semiconductors
PCF8523
Real-Time Clock (RTC) and calendar
8.2.2 Register Control_2
Table 8. Control_2 - control and status register 2 (address 01h) bit description
Bit
Symbol
Value
Description
7
WTAF
0[1]
no watchdog timer A interrupt generated
1
flag set when watchdog timer A interrupt
generated; flag is read-only and cleared by
reading register Control_2
6
CTAF
0[1]
no countdown timer A interrupt generated
1
flag set when countdown timer A interrupt
generated; flag must be cleared to clear
interrupt
5
CTBF
0[1]
no countdown timer B interrupt generated
1
flag set when countdown timer B interrupt
generated; flag must be cleared to clear
interrupt
4
SF
0[1]
no second interrupt generated
1
flag set when second interrupt generated; flag
must be cleared to clear interrupt
3
AF
0[1]
no alarm interrupt generated
1
flag set when alarm triggered; flag must be
cleared to clear interrupt
2
WTAIE
0[1]
watchdog timer A interrupt is disabled
1
watchdog timer A interrupt is enabled
1
CTAIE
0[1]
countdown timer A interrupt is disabled
1
countdown timer A interrupt is enabled
0
CTBIE
0[1]
countdown timer B interrupt is disabled
1
countdown timer B interrupt is enabled
[1] Default value.
PCF8523
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 5 July 2012
© NXP B.V. 2012. All rights reserved.
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