3.13.4
Detailed Explanation of Control Register
RTC is not initialized by system reset.
Therefore, all registers must be initialized at the beginning of the program.
(1) Second column register (for PAGE0 only)
SECR
Bit symbol
(1320H)
Read/Write
Reset State
Function
"0" is read.
7
6
5
SE6
SE5
40 sec.
20 sec.
column
column
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Note: Do not set data other than as shown above.
92CH21-320
4
3
SE4
SE3
R/W
Undefined
10 sec.
8 sec.
4 sec.
column
column
column
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
1
0
0
1
0
1
0
0
:
1
1
0
0
0
0
:
0
1
0
1
0
0
:
1
1
0
0
0
0
:
0
1
0
1
0
0
:
1
1
0
TMP92CH21
2
1
0
SE2
SE1
SE0
2 sec.
1 sec.
column
column
0
0
0 sec
0
1
1 sec
1
0
2 sec
1
1
3 sec
0
0
4 sec
0
1
5 sec
1
0
6 sec
1
1
7 sec
0
0
8 sec
0
1
9 sec
0
0
10 sec
0
1
19 sec
0
0
20 sec
0
1
29 sec
0
0
30 sec
0
1
39 sec
0
0
40 sec
0
1
49 sec
0
0
50 sec
0
1
59 sec
2009-06-19