PCF85263ATT/AJ View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
PCF85263ATT/AJ
NXP Semiconductors.
'PCF85263ATT/AJ' PDF : 100 Pages View PDF
NXP Semiconductors
PCF85263A
Tiny RTC with alarm, battery switch-over, and I2C-bus
Table 13. Alarm1 and alarm2 registers in RTC mode coded in BCD (RTCM = 0)
Bit positions labeled as - are not implemented.
Address Register name Upper-digit (ten’s place)
Digit (unit place)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
RTC alarm1 registers
08h
Second_alarm1 -
0 to 5
0 to 9
09h
Minute_alarm1 -
0 to 5
0 to 9
0Ah
Hour_alarm1
-
-
AMPM 0 to 1 0 to 9
0 to 2
0 to 9
0Bh
Day_alarm1
-
-
0 to 3
0 to 9
0Ch
Month_alarm1 -
-
-
0 to 1 0 to 9
RTC alarm2 registers
0Dh
Minute_alarm2 -
0 to 5
0 to 9
0Eh
Hour_alarm2
-
-
AMPM 0 to 1 0 to 9
0 to 2
0 to 9
0Fh
Weekday_alarm2 -
-
-
-
-
0 to 6
Bit 0
8.4.1.2 Alarm1 and alarm2 control in RTC mode
Table 14. Alarm_enables- alarm enable control register (address 10h) bit
description
Bit
Symbol
Value
Description
RTC alarm2
7
WDAY_A2E
weekday alarm2 enable
0[1]
disabled
1
enabled
6
HR_A2E
hour alarm2 enable
0[1]
disabled
1
enabled
5
MIN_A2E
minute alarm2 enable
0[1]
disabled
1
enabled
RTC alarm1
4
MON_A1E
month alarm1 enable
0[1]
disabled
1
enabled
3
DAY_A1E
day alarm1 enable
0[1]
disabled
1
enabled
2
HR_A1E
hour alarm1 enable
0[1]
disabled
1
enabled
PCF85263A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4.1 — 27 November 2015
© NXP Semiconductors N.V. 2015. All rights reserved.
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