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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 81 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
Miscellaneous Interrupt Status Register (SYS_MISCISR)
Register
Offset
R/W
Description
Reset Value
SYS_MISCISR
0x044 R/W
Miscellaneous Interrupt Status Register
0x0001_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
USB0_IDS
IBR_RUN_F
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
USBIDC_IS
LVD_IS
Bits
Description
[31:18]
Reserved
Reserved.
[17]
USB0_IDS
USB0_ID Status
0 = USB port 0 used as a USB device port.
1 = USB port 0 used as a USB host port.
[16]
IBR_RUN_F
IBR Run Flag
0 = CPU didn
’t execute instruction in 0xFFFF_0000 yet.
1 = CPU executed instruction in 0xFFFF_0000.
[15:2]
Reserved
Reserved.
[1]
USBIDC_IS
USB0_ID Pin State Change Interrupt Status
0 = USB0_ID state didn
’t change.
1 = USB0_ID state changed from low to high or from high to low.
[0]
LVD_IS
Low Voltage Detect Interrupt Status
0 = No low voltage event.
1 = Low voltage event detected.