RTC_B Registers
708
SLAU367P – October 2012 – Revised April 2020
Copyright © 2012–2020, Texas Instruments Incorporated
Real-Time Clock B (RTC_B)
28.3.16 RTCYEAR Register – Hexadecimal Format
Real-Time Clock Year Register – Hexadecimal Format
Figure 28-17. RTCYEAR Register
15
14
13
12
11
10
9
8
0
0
0
0
Year – high byte
r-0
r-0
r-0
r-0
rw
rw
rw
rw
7
6
5
4
3
2
1
0
rw
rw
rw
rw
rw
rw
rw
rw
Table 28-17. RTCYEAR Register Description
Bit
Field
Type
Reset
Description
15-12
0
R
0h
Always reads as 0.
11-8
Year – high byte
RW
undefined
Year – high byte. Valid values of Year are 0 to 4095.
7-0
Year – low byte
RW
undefined
Year – low byte. Valid values of Year are 0 to 4095.
28.3.17 RTCYEAR Register – BCD Format
Real-Time Clock Year Register – BCD Format
Figure 28-18. RTCYEAR Register
15
14
13
12
11
10
9
8
0
Century – high digit
Century – low digit
r-0
rw
rw
rw
rw
rw
rw
rw
7
6
5
4
3
2
1
0
Decade
Year – lowest digit
rw
rw
rw
rw
rw
rw
rw
rw
Table 28-18. RTCYEAR Register Description
Bit
Field
Type
Reset
Description
15
0
R
0h
Always reads as 0.
14-12
Century – high digit
RW
undefined
Century – high digit . Valid values are 0 to 4.
11-8
Century – low digit
RW
undefined
Century – low digit. Valid values are 0 to 9.
7-4
Decade
RW
undefined
Decade. Valid values are 0 to 9.
3-0
Year – lowest digit
RW
undefined
Year – lowest digit. Valid values are 0 to 9.