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RX8111CE
13.2. Register Table
13.2.1. Register Table
Address
Function
Hex
10
SEC
11
MIN
12
HOUR
13
WEEK
14
DAY
15
MONTH
16
YEAR
17
MIN Alarm
18
HOUR Alarm
WEEK Alarm
19
DAY Alarm
1A
Timer Counter 0
1B
Timer Counter 1
1C
Timer Counter 2
1D
Extension Register
1E
Flag Register
1F
Control Register
Function
Address
20h
Time Stamp 1/1024S
21h
Time Stamp 1/256S
22h
Time Stamp SEC
23h
Time Stamp MIN
24h
Time Stamp HOUR
25h
Time Stamp WEEK
26h
Time Stamp DAY
27h
Time Stamp MONTH
28h
Time Stamp YEAR
29h
Status Stamp
2Ah
No Function
2Bh
EVIN Setting
2Ch
SEC Alarm
2Dh
Timer Control
Time Stamp control 0
2Eh
2Fh
Command Trigger
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.
Any bit marked with "z" should be used with a value of "0" after initialization. (Not writable)
Any bit marked with "•" is a RAM bit that can be used to read or write any data.
Any bit marked with' -- 'is Not writable. Read result is unkown.
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.
By read/write to register of No-Function, other finction are not affected.
Table 9 Register Table (1)
bit 7
bit 6
bit 5
z
40
20
z
40
20
z
z
20
z
6
5
z
z
20
z
z
z
80
40
20
AE
40
20
•
AE
20
6
5
AE
•
20
128
64
32
32768
16384
8192
2097152
8388608
4194304
FSEL1
FSEL0
USEL
POR
z
UF
z
z
UIE
bit 7
bit 6
bit 5
--
--
--
1/2
1/24
1/8
z
40
20
z
40
20
z
z
20
z
6
5
z
z
20
z
z
z
80
40
20
z
z
VLOW
z
z
z
EHL
ET1
ET0
AE
40
20
z
z
z
z
z
z
z
z
z
Page − 16
bit 4
bit 3
bit 2
10
8
4
10
8
4
10
8
4
4
3
2
10
8
4
10
8
4
10
8
4
10
8
4
10
8
4
4
3
2
10
8
4
16
8
4
4096
2048
1024
524288 262144 131072
1048576
TE
WADA
ETS
TF
AF
EVF
TIE
AIE
EIE
bit 4
bit 3
bit 2
--
--
--
1/16
1/32
1/64
10
8
4
10
8
4
10
8
4
4
3
2
10
8
4
10
8
4
10
8
4
z
VCMP
VDET
z
z
z
PDN
PU1
PU0
10
8
4
z
TBKON
TBKE
z
z
z
z
z
z
bit 1
bit 0
2
1
2
1
2
1
1
0
2
1
2
1
2
1
2
1
2
1
1
0
2
1
2
1
512
256
65536
TSEL1
TSEL0
VLF
XST
z
STOP
bit 1
bit 0
1/512
1/1024
1/128
1/256
2
1
2
1
2
1
1
0
2
1
2
1
2
1
z
XST
z
z
-
OVW
2
1
TMPIN
TSTP
z
COMTG
z
z
ETM61E-01
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