NuMicro® NUC029LEE/NUC029SEE
32-bit Arm
®
Cortex
®
-M0 Microcontroller
Aug, 2018
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Rev 1.00
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RTC Spare Functional Control Register (SPRCTL)
Register
Offset
R/W
Description
Reset Value
SPRCTL
0x3C
R/W
RTC Spare Functional Control Register
0x0000_0080
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
SPRRDY
Reserved
SPREN
Reserved
Bits
Description
[31:8]
Reserved
Reserved.
[7]
SPRRDY
SPR Register Ready
This bit indicates if the registers SPRCTL, SPR0 ~ SPR19 are ready to be accessed.
After user writing registers SPRCTL, SPR0 ~ SPR19, read this bit to check if these
registers are updated done is necessary.
0 = SPRCTL, SPR0 ~ SPR19 updating is in progress.
1 = SPRCTL, SPR0 ~ SPR19 are updated done and ready to be accessed.
Note:
This bit is read only and any write to it won’t take any effect.
[6:3]
Reserved
Reserved.
[2]
SPREN
SPR Register Enable Bit
0 = Spare register is Disabled.
1 = Spare register is Enabled.
Note:
When spare register is disabled, RTC SPR0 ~ SPR19 cannot be accessed.
[1:0]
Reserved
Reserved.