HT1382 Просмотр технического описания (PDF) - Holtek Semiconductor
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HT1382 Datasheet PDF : 29 Pages
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HT1382
I2C/3-Wire Real Time Clock
Register Description
The device includes 16 registers which are used to control functions such as the RTC, Status, Alarm,
Frequency output etc. There are also five bytes of EEPROM which contain the clock compensation
settings and stored user data. The RTC and Alarm register data is stored in BCD format, while other
data is stored in binary format. The register map shows the address definitions for the I2C interface.
The command byte and R/W bit are used for the 3-wire interface.
Address
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
12H
13H
14H
D7
CH
0
12/
24
0
0
0
WP
ARE
IME
SECEN
MINEN
HREN
DTEN
MOEN
DAYEN
DTS
Register Definition
Register Range
D6 D5
D4
D3 D2 D1 D0 Name Data
10 SEC
SEC
Seconds 00~59
10 MIN
0 AP
HR
0 10
HR
0
10 DATE
MIN
HOUR
DATE
Minutes 00~59
Hours
01~12
00~23
Date 01~31
0
0
10M
MONTH
Month 01~12
0
0
0
0
DAY
Day
01~07
10 YEAR
YEAR
Year 00~99
0
0
0
0
0
0
0
ST
¾
0
0
EWE EB AI BE 0
ST
¾
AE LPM OEOBM FO3 FO2 FO1 FO0 INT
¾
AL. 10SEC
AL. 10MIN
0
AL. 10HR
0
AL. 10DT
AL.
0
0
10M
0
0
0
AL. SEC
AL. MIN
AL. HOUR
AL. DATE
AL. MONTH
0
AL. DAY
EEPROM Data
Seconds
Alarm
Minutes
Alarm
Hours
Alarm
Date
Alarm
Month
Alarm
Day
Alarm
00~59
00~59
01~12
00~23
01~31
01~12
01~07
DT6 DT5 DT4 DT3 DT2 DT1 DT0
DT
¾
EEPROM User Data
USR
¾
EEPROM User Data
USR
¾
EEPROM User Data
USR
¾
EEPROM User Data
USR
¾
Bit Command
Default
R/W Byte
80H
00H
12H
01H
01H
01H
00H
80H
00H
00H
00H
00H
00H
00H
00H
00H
W 10000000
R 10000001
W 10000010
R 10000011
W 10000100
R 10000101
W 10000110
R 10000111
W 10001000
R 10001001
W 10001010
R 10001011
W 10001100
R 10001101
W 10001110
R 10001111
W 10010000
R 10010001
W 10010010
R 10010011
W 10010100
R 10010101
W 10010110
R 10010111
W 10011000
R 10011001
W 10011010
R 10011011
W 10011100
R 10011101
W 10011110
R 10011111
¾
W 10100000
R 10100001
¾
W 10100010
R 10100011
W 10100100
¾
R 10100101
W 10100110
¾
R 10100111
W 10101000
¾
R 10101001
Rev. 1.40
11
May 27, 2011
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