GigaDevice Semiconductor GD32L23 Series, User Manual

Page: 273 / 639

GD32L23x User Manual
273
This register has to be accessed by word (32-bit)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved YRT[3:0] YRU[3:0]
rw rw
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
DOW[2:0] MONT MONU[3:0] Reserved DAYT[1:0] DAYU[3:0]
rw rw rw rw rw
Bits Fields Descriptions
31:24 Reserved Must be kept at reset value.
23:20 YRT Year tens in BCD code
19:16 YRU[3:0] Year units in BCD code
15:13 DOW[2:0] Days of the week
0x0: Reserved
0x1: Monday
…
0x7: Sunday
12 MONT Month tens in BCD code
11:8 MONU[3:0] Month units in BCD code
7:6 Reserved Must be kept at reset value.
5:4 DAYT[1:0] Day tens in BCD code
3:0 DAYU[3:0] Day units in BCD code
16.4.3. Control register (RTC_CTL)
Address offset: 0x08
System reset: not affected
Backup domain reset value: 0x0000 0000
This register is writing protected
This register has to be accessed by word (32-bit)
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
OUT2EN Reserved ITSEN COEN OS[1:0] OPOL COS DSM S1H A1H
rw rw rw rw rw rw rw w w
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
TSIE WTIE ALRM1IE ALRM0IE TSEN WTEN
ALRM1E
N
ALRM0E
N
Reserved CS BPSHAD REFEN TSEG WTCS[2:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits Fields Descriptions
31:24 OUT2EN RTC_OUT pin select
0:RTC_OUT is output on PC13