PCA8565 데이터 시트보기 (PDF) - NXP Semiconductors.

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PCA8565

4-bit multiplexed/1-bit latched 5-bit I2C EEPROM

NXP Semiconductors. 

NXP Semiconductors

PCA8565

Real time clock/calendar

9.1 Register overview

Table 4. Register overview and control bits default values

Bit positions labeled as - are not implemented. Bit positions labeled as N should always be written with logic 0. Reset values

are shown in Table 7.

Address

Register name

Bit

7

6

5

4

3

2

1

0

Control registers

00h

Control_1

TEST1 N

STOP N

TESTC N

N

N

01h

Control_2

N

N

N

TI_TP AF

TF

AIE

TIE

Time and date registers

02h

Seconds

VL

SECONDS (0 to 59)

03h

Minutes

-

MINUTES (0 to 59)

04h

Hours

-

-

HOURS (0 to 23)

05h

Days

-

-

DAYS (1 to 31)

06h

Weekdays

-

-

-

-

-

WEEKDAYS (0 to 6)

07h

Months_century

C

-

-

MONTHS (1 to 12)

08h

Years

YEARS (0 to 99)

Alarm registers

09h

Minute_alarm

AE_M MINUTE_ALARM (0 to 59)

0Ah

Hour_alarm

AE_H -

HOUR_ALARM (0 to 23)

0Bh

Day_alarm

AE_D -

DAY_ALARM (1 to 31)

0Ch

Weekday_alarm

AE_W -

-

-

-

WEEKDAY_ALARM (0 to 6)

CLKOUT control register

0Dh

CLKOUT_control FE

-

-

-

-

-

FD

Timer registers

0Eh

Timer_control

TE

-

-

-

-

-

TD

0Fh

Timer

COUNTDOWN_TIMER

PCA8565_2

Product data sheet

Rev. 02 — 16 June 2009

© NXP B.V. 2009. All rights reserved.

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