Technical Reference Manual
002-29852 Rev. *B
5.1.14 CPUSS_CM4_NMI_CTL
Description:
CM4 NMI control
Address:
0x40200240
Offset:
0x240
Retention:
Retained
IsDeepSleep:
No
Comment:
Note that multiple (four) CM4_NMI_CTL registers exist, allowing for multiple (four) system
interrupts to be connected to the CPU NMI. The four selected system interrupts are logically
OR'd into a single CPU NMI input. The NMI handler may need to investigate all selected
system interrupt sources to identify the source of CPU NMI.
Default:
0x3FF
Bit-field Table
Bits
7
6
5
4
3
2
1
0
Name
SYSTEM_INT_IDX [7:0]
Bits
15
14
13
12
11
10
9
8
Name
None [15:10]
SYSTEM_INT_IDX [9:8]
Bits
23
22
21
20
19
18
17
16
Name
None [23:16]
Bits
31
30
29
28
27
26
25
24
Name
None [31:24]
Bit-fields
Bits Name
SW
HW
Default or
Enum
Description
0:9
SYSTEM_INT_IDX
RW
R
1023
System interrupt select for CPU NMI. The reset value
('1023') ensures that the CPU NMI is NOT connected
to any system interrupt after DeepSleep reset.
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2022-04-18
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