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ISL12022MAIBZ View Datasheet(PDF) - Intersil

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ISL12022MAIBZ Datasheet PDF : 29 Pages
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ISL12022MA
TABLE 1. REGISTER MEMORY MAP (YELLOW SHADING INDICATES READ-ONLY BITS) (Continued)
BIT
REG
ADDR. SECTION NAME
7
6
5
4
3
2
1
0 RANGE DEFAULT
16h
VSC
0
VSC22 VSC21
VSC20 VSC13 VSC12
VSC11
VSC10 0 to 59
00h
17h
VMN
0
VMN22 VMN21 VMN20 VMN13 VMN12 VMN11 VMN10 0 to 59
00h
18h
TSV2B
VHR
VMIL
0
VHR21 VHR20 VHR13 VHR12 VHR11 VHR10 0 to 23
00h
19h
VDT
0
0
VDT21
VDT20
VDT13
VDT12
VDT11
VDT10 1 to 31
00h
1Ah
VMO
0
0
0
VMO20 VMO13 VMO12 VMO11 VMO10 1 to 12
00h
1Bh
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
TSB2V
BHR
BMIL
0
BHR21 BHR20 BHR13 BHR12 BHR11 BHR10 0 to 23
00h
1Eh
BDT
0
0
BDT21
BDT20
BDT13
BDT12
BDT11
BDT10 1 to 31
00h
1Fh
BMO
0
0
0
BMO20 BMO13 BMO12 BMO11 BMO10 1 to 12
00h
20h
DstMoFd DSTE
D
D
DstMoFd20 DstMoFd13 DstMoFd12 DstMoFd11 DstMoFd10 1 to 12
00h
21h
DstDwFd
D DstDwFdE DstWkFd12 DstWkFd11 DstWkFd10 DstDwFd12 DstDwFd11 DstDwFd10 0 to 6
00h
22h
DstDtFd
D
D
DstDtFd21 DstDtFd20 DstDtFd13 DstDtFd12 DstDtFd11 DstDtFd10 1 to 31
00h
23h
DstHrFd
D
DSTCR
24h
DstMoRv
D
D
DstHrFd21 DstHrFd20 DstHrFd13 DstHrFd12 DstHrFd11 DstHrFd10 0 to 23
00h
D
D
DstMoRv20 DstMoRv13 DstMoR12v DstMoRv11 DstMoRv10 01 to 12
00h
25h
DstDwRv
D DstDwRvE DstWkrv12 DstWkRv11 DstWkRv10 DstDwRv12 DstDwRv11 DstDwRv10 0 to 6
00h
26h
DstDtRv
D
D
DstDtRv21 DstDtRv20 DstDtRv13 DstDtRv12 DstDtRv11 DstDtRv10 01 to 31
00h
27h
DstHrRv
D
D
DstHrRv21 DstHrRv20 DstHrRv13 DstHrRv12 DstHrRv11 DstHrRv10 0 to 23
00h
28h
TK0L
TK07 TK06
TK05
TK04
TK03
TK02
TK01
TK00 00 to FF
00h
TEMP
29h
TK0M
0
0
0
0
0
0
TK09
TK08 00 to 03
00h
2Ah
NPPML NPPM7 NPPM6 NPPM5 NPPM4 NPPM3 NPPM2 NPPM1 NPPM0 00 to FF
00h
NPPM
2Bh
NPPMH
0
0
0
0
0
NPPM10 NPPM9 NPPM8 00 to 07
00h
2Ch
XT0
XT0
D
D
D
XT4
XT3
XT2
XT1
XT0
00 to FF
XXh
2Dh ALPHAH 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 GPM27 GPM26 GPM25 GPM24 GPM23 GPM22 GPM21 GPM20 00 to FF
00h
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.
14
FN7575.1
July 9, 2010
 

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