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RM0091
24.6.7
RTC write protection register (RTC_WPR)
Address offset: 0x24
Reset value: 0x0000 0000
31
30
29
Res.
Res.
Res.
Res.
15
14
13
Res.
Res.
Res.
Res.
Bits 31:8 Reserved, must be kept at reset value.
Bits 7:0 KEY: Write protection key
This byte is written by software.
Reading this byte always returns 0x00.
Refer to
protection.
28
27
26
25
Res.
Res.
Res.
12
11
10
9
Res.
Res.
Res.
RTC register write protection
Doc ID 018940 Rev 1
24
23
22
21
Res.
Res.
Res.
Res.
8
7
6
5
Res.
w
w
w
for a description of how to unlock RTC register write
Real-time clock (RTC)
20
19
18
17
Res.
Res.
Res.
Res.
4
3
2
1
KEY
w
w
w
w
16
Res.
0
w
559/742
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