HT1382_1105 HOLTEK [Holtek Semiconductor Inc], HT1382_1105 Datasheet - Page 11

• Manufacturer Part Number: HT1382_1105
• Description: I2C/3-Wire Real Time Clock
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

HT1382
I
Rev. 1.40
2
Address
C/3-Wire Real Time Clock
0FH
0CH
0DH
10H
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0EH
11H
12H
13H
14H
Register Description
SECEN
DAYEN
MINEN
MOEN
HREN
DTEN
ARE
DTS
IME
WP
CH
12/
D7
24
0
0
0
0
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 I
The command byte and R/W bit are used for the 3-wire interface.
DT6
AE
D6
0
0
0
0
0
10 YEAR
0
0
0
0
0
0
AL. 10SEC
AL. 10MIN
LPM
DT5
D5
10 SEC
AP
10 MIN
10
0
0
0
0
0
0
EEPROM User Data
EEPROM User Data
EEPROM User Data
EEPROM User Data
Register Definition
AL. 10HR
AL. 10DT
10 DATE
OEOBM
EWE
10M
10M
DT4
AL.
HR
HR
D4
0
0
0
FO3
DT3
D3
EB
0
0
0
EEPROM Data
AL. MONTH
FO2
DT2
AL. HOUR
D2
AL. DATE
AI
AL. SEC
MONTH
0
AL. MIN
HOUR
DATE
YEAR
SEC
MIN
AL. DAY
11
DAY
FO1
DT1
D1
BE
0
FO0
DT0
D0
0
0
Register
Seconds
Seconds
Minutes
Minutes
Name
Hours
Month
Hours
Month
Alarm
Alarm
Alarm
Alarm
Alarm
Alarm
Date
Year
Date
USR
USR
USR
USR
Day
Day
INT
ST
ST
DT
Range
00~59
00~59
01~12
00~23
01~31
01~12
01~07
00~99
00~59
00~59
01~12
00~23
01~31
01~12
01~07
Data
Default
80H
80H
00H
12H
01H
01H
01H
00H
00H
00H
00H
00H
00H
00H
00H
00H
R/W
Bit
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
May 27, 2011
2
C interface.
Command
10000000
10000001
10000010
10000011
10000100
10000101
10000110
10000111
10001000
10001001
10001010
10001011
10001100
10001101
10001110
10001111
10010000
10010001
10010010
10010011
10010100
10010101
10010110
10010111
10011000
10011001
10011010
10011011
10011100
10011101
10011110
10011111
10100000
10100001
10100010
10100011
10100100
10100101
10100110
10100111
10101000
10101001
Byte