ISL12027_10 Datasheet, PDF (12/28 Pages) Intersil Corporation – Real Time Clock/Calendar with EEPROM

ISL12027, ISL12027A
TABLE 2. CLOCK/CONTROL MEMORY MAP
BIT
REG
RANG
ADDR. TYPE NAME 7
6
5
4
3
2
1
0
E
003F Status
SR BAT
AL1
AL0
OSCF
0
RWEL
WEL
RTCF
01h 01h
0037
RTC
Y2K
0
0036 ^(SRAM) DW
0
0
Y2K21 Y2K20 Y2K13
0
0
Y2K10 19/20 20h 20h
0
0
0
0
DY2
DY1
DY0
0-6 00h 00h
0035
YR Y23
Y22
Y21
Y20
Y13
Y12
Y11
Y10
0-99 00h 00h
0034
MO
0
0
0
G20
G13
G12
G11
G10
1-12 00h 00h
0033
DT
0
0
D21
D20
D13
D12
D11
D10
1-31 01h 01h
0032
HR MIL
0
H21
H20
H13
H12
H11
H10
0-23 00h 00h
0031
MN
0
M22
M21
M20
M13
M12
M11
M10
0-59 00h 00h
0030
SC
0
S22
S21
S20
S13
S12
S11
S10
0-59 00h 00h
0014
0013
0012
Control
(EEPROM
)
PWR
DTR
ATR
SBIB
0
0
BSW
0
0
0
0
ATR5
0
0
ATR4
0
0
ATR3
VTS2
DTR2
ATR2
VTS1
DTR1
ATR1
VTS0
DTR0
ATR0
4Xh 0Xh
00h 00h
00h 00h
0011
INT
IM
AL1E AL0E
0
0
0
0
0
00h 00h
0010
BL
BP2
BP1
BP0
WD1
WD0
0
0
0
18h 18h
000F Alarm1 Y2K1
0
0 A1Y2K21 A1Y2K20 A1Y2K13
0
0
A1Y2K10 19/20 20h 20h
000E ^(EEPROM DWA1 EDW1
0
0
0
0
DY2
DY1
DY0
)
000D
YRA1
Unused - Default = RTC Year value (No EEPROM) - Future expansion
0-6 00h 00h
000C
MOA1 EMO1
0
0
A1G20 A1G13 A1G12 A1G11 A1G10 1-12 00h 00h
000B
DTA1 EDT1
0
A1D21 A1D20 A1D13 A1D12 A1D11 A1D10 1-31 00h 00h
000A
HRA1 EHR1
0
A1H21 A1H20 A1H13 A1H12 A1H11 A1H10 0-23 00h 00h
0009
MNA1 EMN1 A1M22 A1M21 A1M20 A1M13 A1M12 A1M11 A1M10 0-59 00h 00h
0008
SCA1 ESC1 A1S22 A1S21 A1S20 A1S13 A1S12 A1S11 A1S10 0-59 00h 00h
0007 Alarm0 Y2K0
0
0 A0Y2K21 A0Y2K20 A0Y2K13
0
0
A0Y2K10 19/20 20h 20h
0006 ^(EEPROM DWA0 EDW0
0
0
0
0
DY2
DY1
DY0
)
0005
YRA0
Unused - Default = RTC Year value (No EEPROM) - Future expansion
0-6 00h 00h
0004
MOA0 EMO0
0
0
A0G20 A0G13 A0G12 A0G11 A0G10 1-12 00h 00h
0003
DTA0 EDT0
0
A0D21 A0D20 A0D13 A0D12 A0D11 A0D10 1-31 00h 00h
0002
HRA0 EHR0
0
A0H21 A0H20 A0H13 A0H12 A0H11 A0H10 0-23 00h 00h
0001
MNA0 EMN0 A0M22 A0M21 A0M20 A0M13 A0M12 A0M11 A0M10 0-59 00h 00h
0000
SCA0 ESC0 A0S22 A0S21 A0S20 A0S13 A0S12 A0S11 A0S10 0-59 00h 00h
NOTE: (Shaded cells indicate that NO other value is to be written to that bit. X indicates the bits are set according to the product variation, see device
“Ordering Information” on page 2).
12
FN8232.8
August 12, 2010