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参数资料
| 型号： | 1339-2DVGI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 3 MM, ROHS COMPLIANT, MSOP-8 |
| 文件页数： | 23/26页 |
| 文件大小： | 330K |
| 代理商： | 1339-2DVGI |
IDT1339
REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
RTC
IDT
REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
6
IDT1339
REV N 060311
Address Map
Table 3 (Timekeeper Registers) shows the address map for the IDT1339 registers. During a multibyte access, when the
address pointer reaches the end of the register space (10h), it wraps around to location 00h. On an I2C START, STOP, or
address pointer incrementing to location 00h, the current time is transferred to a second set of registers. The time
information is read from these secondary registers, while the clock may continue to run. This eliminates the need to re-read
the registers in case of an update of the main registers during a read.
Table 3. Timekeeper Registers
Note: Unless otherwise specified, the state of the registers are not defined when power is first applied or when VCC and VBACKUP falls
below the VBACKUP(min).
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Function
Range
00h
0
10 seconds
Seconds
00 - 59
01h
0
10 minutes
Minutes
00 - 59
02h
0
12/24
AM/PM
10 hour
Hour
Hours
1 - 12
+ AM/PM
00 - 23
10 hour
03h
0
0000
Day
1 - 7
04h
0
10 date
Date
01 - 31
05h
Century
0
10 month
Month
Month/Century
01 - 12 +
Century
06h
10 year
Year
00 - 99
07h
A1M1
10 seconds
Seconds
Alarm 1
Seconds
00 - 59
08h
A1M2
10 minutes
Minutes
Alarm 1
Minutes
00 - 59
09h
A1M3
12/24
AM/PM
10 hour
Hour
Alarm 1 Hours
1 - 12
+ AM/PM
00 - 23
10 hour
0Ah
A1M4
DY/DT
10 date
Day, Date
Alarm 1 Day,
Alarm 1 Date
1 - 7, 1 - 31
0Bh
A2M2
10 minutes
Minutes
Alarm 2
Minutes
00 - 59
0Ch
A2M3
12/24
AM/PM
10 hour
Hour
Alarm 2 Hours
1 - 12
+ AM/PM
00 - 23
10 hour
0Dh
A2M4
DY/DT
10 date
Day, Date
Alarm 2 Day,
Alarm 2 Date
1 - 7, 1 - 31
0Eh
EOSC
0
BBSQI
RS2
RS1
INTCN
A2IE
A1IE
Control
0Fh
OSF
00000
A2F
A1F
Status
10h
TCS3
TCS2
TCS1
TCS0
DS1
DS0
ROUT1
ROUT0
Trickle Charger
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