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参数资料
型号： ISL12022MAIBZ
厂商： Intersil
文件页数： 7/31页
文件大小： 0K
描述： IC RTC/CALENDAR TEMP SNSR 20SOIC
产品培训模块： Solutions for Industrial Control Applications
标准包装： 38
类型： 时钟/日历
特点： 警报器，夏令时，闰年，SRAM
存储容量： 128B
时间格式： HH:MM:SS（12/24 小时）
数据格式： YY-MM-DD-dd
接口： I²C，2 线串口
电源电压： 2.7 V ~ 5.5 V
电压 - 电源，电池： 1.8 V ~ 5.5 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 20-SOIC（0.295"，7.50mm 宽）
供应商设备封装： 20-SOIC
包装： 管件
ISL12022MA
15
FN7575.5
September 5, 2012
Real Time Clock Registers
Addresses [00h to 06h]
RTC REGISTERS (SC, MN, HR, DT, MO, YR, DW)
These registers depict BCD representations of the time. As such,
SC (Seconds) and MN (Minutes) range from 0 to 59, HR (Hour)
can either be a 12-hour or 24-hour mode, DT (Date) is 1 to 31,
MO (Month) is 1 to 12, YR (Year) is 0 to 99, and DW (Day of the
Week) is 0 to 6.
The DW register provides a Day of the Week status and uses three
bits (DW2 to DW0) to represent the seven days of the week. The
counter advances in the cycle 0-1-2-3-4-5-6-0-1-2-…
The assignment of a numerical value to a specific day of the
week is arbitrary and may be decided by the system software
designer. The default value is defined as “0”.
24-HOUR TIME
If the MIL bit of the HR register is “1”, the RTC uses a 24-hour
format. If the MIL bit is “0”, the RTC uses a 12-hour format and
HR21 bit functions as an AM/PM indicator with a “1”
representing PM. The clock defaults to 12-hour format time with
HR21 = “0”.
LEAP YEARS
Leap years add the day February 29 and are defined as those years
that are divisible by 4. Years divisible by 100 are not leap years,
unless they are also divisible by 400. This means that the year 2000
is a leap year and the year 2100 is not. The ISL12022MA does not
correct for the leap year in the year 2100.
1Bh
TSB2V
BSC
0
BSC22
BSC21
BSC20
BSC13
BSC12
BSC11
BSC10
0 to 59
00h
1Ch
BMN
0
BMN22
BMN21
BMN20
BMN13
BMN12
BMN11
BMN10
0 to 59
00h
1Dh
BHR
BMIL
0
BHR21
BHR20
BHR13
BHR12
BHR11
BHR10
0 to 23
00h
1Eh
BDT
0
BDT21
BDT20
BDT13
BDT12
BDT11
BDT10
1 to 31
00h
1Fh
BMO
0
BMO20
BMO13
BMO12
BMO11
BMO10
1 to 12
00h
20h
DSTCR
DstMoFd
DSTE
D
DstMoFd
20
DstMoFd
13
DstMoFd
12
DstMoFd
11
DstMoFd
10
1 to 12
00h
21h
DstDwFd
D
DstDwFd
E
DstWkFd
12
DstWkFd
11
DstWkFd
10
DstDwFd
12
DstDwFd
11
DstDwFd
10
0 to 6
00h
22h
DstDtFd
D
DstDtFd2
1
DstDtFd2
0
DstDtFd1
3
DstDtFd1
2
DstDtFd1
1
DstDtFd1
0
1 to 31
00h
23h
DstHrFd
D
DstHrFd2
1
DstHrFd2
0
DstHrFd1
3
DstHrFd1
2
DstHrFd1
1
DstHrFd1
0
0 to 23
00h
24h
DstMoRv
D
DstMoRv
20
DstMoRv
13
DstMoR1
2v
DstMoRv
11
DstMoRv
10
01 to 12
00h
25h
DstDwRv
D
DstDwR
vE
DstWkrv1
2
DstWkRv
11
DstWkRv
10
DstDwRv
12
DstDwRv
11
DstDwRv
10
0 to 6
00h
26h
DstDtRv
D
DstDtRv2
1
DstDtRv2
0
DstDtRv1
3
DstDtRv1
2
DstDtRv1
1
DstDtRv1
0
01 to 31
00h
27h
DstHrRv
D
DstHrRv2
1
DstHrRv2
0
DstHrRv1
3
DstHrRv1
2
DstHrRv1
1
DstHrRv1
0
0 to 23
00h
28h
TEMP
TK0L
TK07
TK06
TK05
TK04
TK03
TK02
TK01
TK00
00 to FF
00h
29h
TK0M
0
TK09
TK08
00 to 03
00h
2Ah
NPPM
NPPML
NPPM
7
NPPM6
NPPM5
NPPM4
NPPM3
NPPM2
NPPM1
NPPM0
00 to FF
00h
2Bh
NPPMH
0
NPPM10
NPPM9
NPPM8
00 to 07
00h
2Ch
XT0
D
XT4
XT3
XT2
XT1
XT0
00 to FF
XXh
2Dh
ALPHAH
D
ALP_H6
ALP_H5
ALP_H4
ALP_H3
ALP_H2
ALP_H1
ALP_H0
00 to 7F
XXh
2Eh
GPM
GPM1
GPM17 GPM16
GPM15
GPM14
GPM13
GPM12
GPM11
GPM10
00 to FF
00h
2Fh
GPM2
7
GPM26
GPM25
GPM24
GPM23
GPM22
GPM21
GPM20
00 to FF
00h
TABLE 1. REGISTER MEMORY MAP (YELLOW SHADING INDICATES READ-ONLY BITS) (Continued)
ADDR.
SECTION
REG
NAME
BIT
RANGE
DEFAULT
7
6
543
210
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