Epson RX8130CE - Register Table

13. Overview of Functions and Registers
RX8130CE Jump to Top / Bottom
ETM50E-07 Seiko Epson Corporation 20
13.2. Register Table
13.2.1. Register Table
Table 12 Register Table
Addressh
Function
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
10
SEC
0
40
20
10
8
4
2
1
11
MIN
0
40
20
10
8
4
2
1
12
HOUR
0
0
20
10
8
4
2
1
13
WEEK
0
6
5
4
3
2
1
0
14
DAY
0
0
20
10
8
4
2
1
15
MONTH
0
0
0
10
8
4
2
1
16
YEAR
80
40
20
10
8
4
2
1
17
MIN Alarm
AE
40
20
10
8
4
2
1
18
HOUR Alarm
AE

20
10
8
4
2
1
19
WEEK Alarm
AE
6
5
4
3
2
1
0
DAY Alarm

20
10
8
4
2
1
1A
Timer Counter 0
128
64
32
16
8
4
2
1
1B
Timer Counter 1
32768
16384
8192
4096
2048
1024
512
256
1C
Extension Register
FSEL1
FSEL0
USEL
TE
WADA
TSEL2
TSEL1
TSEL0
1D
Flag Register
VBLF
0
UF
TF
AF
RSF
VLF
VBFF
1E
Control Register0
TEST
STOP
UIE
TIE
AIE
TSTP
TBKON
TBKE
1F
Control Register1
SMP
TSEL1
SMP
TSEL0
CHG
EN
INIEN
0
RS
VSEL
BF
VSEL1
BF
VSEL0
Addressh
Function
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
20
|
23
RAM
User Register
32 bits ( 4-word x 8 bit )
Addressh
Function
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
30
Digital offset
DTE
L7
L6
L5
L4
L3
L2
L1
31
Extension Register1
-
-
-
-
-
-
-
VBLFE
After the initial power-up (from 0V) or in case the VLF bit returns "1" , make sure to initialize all registers, before
using the RTC.
Be sure to avoid entering incorrect date and time data, as clock operations are not guaranteed when the data or time
data is incorrect.
The TEST bit is used by the manufacturer for testing. Be sure to set "0" for this bit when writing.  Be sure to write "0"
by initializing before using the clock module. Afterward, be sure to set "0" when writing
“0” means that writing is invalid and the read value is always 0.
Any bit marked with "" is a RAM bit that can be used to read or write any data.
User Register is a free register which can be used as user RAM.
The above table shows only the user registers. Due to functional reasons, RTC has different registers not mentioned
above table which are programmed by the manufactorer. Please make sure to only access above mentioned user
registers.
“-“ bit is TEST bit. As initialization “0” should be set and be kept “0”.