RX610 Group
10. ICU
R01UH0032EJ0120 Rev.1.20
Page 231 of 1006
Feb 20, 2013
10.2.8
Non-maskable Interrupt Enable Register (NMIER)
Address: 0008 C350h
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
—
—
—
—
—
—
—
NMIEN
Bit
Symbol
Bit Name
Description
R/W
b0
NMIEN
NMI Enable
0: NMI pin interrupt is disabled
1: NMI pin interrupt is enabled
R/W
*
b7 to b1
Reserved
These bits are read as 0. The write value should always be 0.
R/W
Note:
*
A 1 can be written to this bit only once, and subsequent write accesses are no longer enabled.
The NMIER register is used to enable the non-maskable interrupt.
NMIEN Bit (NMI Enable)
This bit enables interrupts by the signal on the NMI pin.
A 1 can be written to this bit only once. Once the interrupt has been enabled, further write access is not possible.
Do not write 0 to this bit. The NMI cannot be disabled once it has been enabled.