Non-Maskable Interrupt Control

Name:
NMICTRL
Offset:
0x01
Reset:
0x00
Access:
PAC Write-Protection
Bit76543210
ASYNCHNMIFILTENNMISENSE[2:0]
AccessR/WR/WR/WR/WR/W
Reset00000

Bit 4 – ASYNCH: Asynchronous Edge Detection Mode

Asynchronous Edge Detection Mode

The NMI edge detection can be operated synchronously or asynchronously to the EIC clock.

ValueDescription
0 The NMI edge detection is synchronously operated.
1 The NMI edge detection is asynchronously operated.

Bit 3 – NMIFILTEN: Non-Maskable Interrupt Filter Enable

Non-Maskable Interrupt Filter Enable

ValueDescription
0 NMI filter is disabled.
1 NMI filter is enabled.

Bits 2:0 – NMISENSE[2:0]: Non-Maskable Interrupt Sense

Non-Maskable Interrupt Sense

These bits define on which edge or level the NMI triggers.

ValueNameDescription
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