R
EM3027
5
Memory Mapping
Address
Page
[6..3]
Control Page
00000
000
0x00
OnOffCtrl
Default
001
0x01
IRQctrl
Default
010
011
100
Watch Page
00001
000
001
010
011
100
101
110
Alarm Page
00010
000
01
010
011
100
101
110
Timer Page
00011
000
001
Temperature Page
00100
000
0x20
Temp
-60-195 °C
-
-
-
-
-
-
-
-
0x18
0x19
Timer low byte
Timer high byte
0-255
0-255
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0x10
0x11
0x12
0x13
0x14
0x15
0x16
Alarm Seconds
Alarm Minutes
Alarm Hours
Alarm Date
Alarm Days
Alarm Months
Alarm Years
0 – 59 BCD
0 – 59 BCD
0 - 23 BCD
1 - 12 BCD
Addr
[2..0]
Hex
Description
Range
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
Clk/Int
1
TD1
0
TD0
0
SROn
1
SRIntE
0
SRF
EERefOn
1
V2IntE
0
V2F
VLOW2
TROn
0
V1IntE
0
V1F
VLOW1
TiOn
0
TIntE
0
TF
WaOn
1
AIntE
0
AF
0x02
0x03
0x04
IRQflags
Status
RstCtrl
Watch Seconds
Watch Minutes
Watch Hours
Watch Date
Watch Days
Watch Months
Watch Years
----
----
----
0 – 59 BCD
0 – 59 BCD
0 - 23 BCD
1 - 12 BCD
EEBusy
PON
SR
SYSRes
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
Seconds Tens
Minutes Tens
S12/24
pm/2
Hours Tens
Seconds Units
Minutes Units
Hours Units
Date Units
Days Units
Months
Tens
1 – 31 BCD
1 – 7 BCD
1 – 12 BCD
0 – 79 BCD
SecEq
MinEq
HourEq
DateEq
DayEq
Date Tens
Months Units
Years Units
Seconds Units
Minutes Units
Hours Units
Date Units
Days Units
Years Tens
Seconds Tens
Minutes Tens
pm/2
Hours Tens
1 – 31 BCD
1 – 7 BCD
Date Tens
Months
Tens
1 – 12 BCD MonthEq
0 – 79 BCD
YearEq
Years Tens
Months Units
Years Units
EEPROM Data Page - Configuration Registers
00101
000
001
0x28
0x29
EEData
----
EEPROM user data (2 bytes)
EEPROM Control Page - Configuration Registers
00110
000
0x30
XtalOffset
001
0x31
Qcoef
010
0x32
TurnOver
011
RAM Page (User data RAM)
00111
000-111
0x38-
0x3F
RAMdata
----
8 bytes of data
0x33
EEctrl
----
Default
±121
Default
----
Default
4-67 °C
Default
R80k
0
sign
-
-
-
R20k
0
-
-
-
-
R5k
0
-
-
-
-
-
-
R1.5k
0
-
-
-
-
-
-
FD1
0
-
-
-
-
-
-
FD0
0
-
-
-
-
-
-
ThEn
1
-
-
-
-
-
-
ThPer
0
-
-
-
-
-
-
Table 8
Unused bit (Read as zero; write has no influence)
Copyright © 2009, EM Microelectronic-Marin SA
12/09 – rev D
9
www.emmicroelectronic.com
EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
