NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 404 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
RTC Interrupt Status Register (RTC_INTSTS)
Register
Offset
R/W
Description
Reset Value
RTC_INTSTS
0x02C
R/W
RTC Interrupt Status Register
0x0000_0000
31
30
29
28
27
26
25
24
REGWRBUSY
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
Reserved
KEYPRESINT RELALMINT
PWRSWINT
WAKEUPINT
TICKINT
ALMINT
Bits
Description
[31]
REGWRBUSY
Register Write Operation Busy
0 = The new register write operation is acceptable.
1 = The last write operation is in progress and new register write operation prohibited.
[30:6]
Reserved
Reserved.
[5]
KEYPRESINT
Key Pressed for 1 Second Interrupt Status
This bit high indicates the SYS_nWAKEUP keep in low (user pressed the key) for 1
second when SYS_PWREN is high (stage machine is in Power_On state). User can write
1 to clear this bit.
0 = SYS_nWAKEUP pin didn
’t keep in low for 1 second.
1 = SYS_nWAKEUP pin keep in low for 1 second.
[4]
RELALMINT
Relative Alarm Interrupt Status
This bit high indicates the related timer have counted down to zero. User can write 1 to
clear this bit.
0 = Related timer didn
’t count down to zero.
1 = Related timer counts down to zero.
[3]
PWRSWINT
Power Switch Interrupt Status
This bit high indicates the SYS_nWAKEUP transition from high to low (user pressed the
key) when SYS_PWREN is high (stage machine is in Power_On state).
When state machine is not in Power_On state, SYS_nWAKEUP transition from high to
low wouldn
’t set this bit high.
User can write 1 to clear this bit.
0 = Pin SYS_nWAKEUP didn
’t transit from high to low or pin SYS_PWREN is not high..
1 = Pin SYS_nWAKEUP transit from high to low when pin SYS_PWREN is high.
