Datasheet

Table Of Contents
23.8.2 Non-Maskable Interrupt Control
Name:  NMICTRL
Offset:  0x01
Reset:  0x00
Property:  PAC Write-Protection
Bit 7 6 5 4 3 2 1 0
NMIASYNCH NMIFILTEN NMISENSE[2:0]
Access
R/W R/W R/W R/W R/W
Reset 0 0 0 0 0
Bit 4 – NMIASYNCH Asynchronous Edge Detection Mode
The NMI edge detection can be operated synchronously or asynchronously to the EIC clock.
Value Description
0
The NMI edge detection is synchronously operated.
1
The NMI edge detection is asynchronously operated.
Bit 3 – NMIFILTEN Non-Maskable Interrupt Filter Enable
Value Description
0
NMI filter is disabled.
1
NMI filter is enabled.
Bits 2:0 – NMISENSE[2:0] Non-Maskable Interrupt Sense Configuration
These bits define on which edge or level the NMI triggers.
Value Name Description
0x0
NONE No detection
0x1
RISE Rising-edge detection
0x2
FALL Falling-edge detection
0x3
BOTH Both-edge detection
0x4
HIGH High-level detection
0x5
LOW Low-level detection
0x6 -
0x7
- Reserved
SAM D5x/E5x Family Data Sheet
EIC – External Interrupt Controller
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 464