PCF85263ATL/A View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

MFG CO.

PCF85263ATL/A

Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus

NXP Semiconductors. 

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8.1.1.1 RTC mode time registers overview (RTCM = 0)

Table 5. RTC mode time registers

Bit positions labeled as - are not implemented. After reset, all registers are set according to Table 62 on page 59.

Address Register name Bit

7

6

5

4

3

2

1

RTC time and date registers

00h

100th_seconds 100TH_SECONDS (0 to 99)

01h

Seconds

OS

SECONDS (0 to 59)

02h

Minutes

EMON

MINUTES (0 to 59)

03h

Hours

-

-

AMPM

HOURS (1 to 12) in 12 hour mode

HOURS (0 to 23) in 24 hour mode

04h

Days

-

-

DAYS (1 to 31)

05h

Weekdays

-

-

-

-

-

WEEKDAYS (0 to 6)

06h

Months

-

-

-

MONTHS (1 to 12)

07h

Years

YEARS (0 to 99)

RTC alarm1

08h

Second_alarm1 -

SEC_ALARM1 (0 to 59)

09h

Minute_alarm1 -

MIN_ALARM1 (0 to 59)

0Ah

Hour_alarm1

-

-

AMPM

HR_ALARM1 (1 to 12) in 12 hour mode

HR_ALARM1 (0 to 23) in 24 hour mode

0Bh

Day_alarm1

-

-

DAY_ALARM1 (1 to 31)

0Ch

Month_alarm1 -

-

-

MON_ALARM1 (1 to 12)

RTC alarm2

0Dh

Minute_alarm2 -

MIN_ALARM2 (0 to 59)

0Eh

Hour_alarm2

-

-

AMPM

HR_ALARM2 (1 to 12) in 12 hour mode

0Fh

Weekday_alarm -

-

-

-

-

WDAY_ALARM2 (0 to 6)

2

RTC alarm enables

10h

Alarm_enables WDAY_A2E HR_A2E MIN_A2E MON_A1E DAY_A1E HR_A1E MIN__A1E

0

SEC__A1E

Reference

Section 8.2

Section 8.4

Section 8.4

Section 8.4

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