RX610 Group
10. ICU
R01UH0032EJ0120 Rev.1.20
Page 233 of 1006
Feb 20, 2013
10.2.10
Non-maskable Interrupt Status Register (NMISR)
—
Address: 0008 C352h
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
—
—
—
—
—
—
NMIST
Bit
Symbol
Bit Name
Description
R/W
b0
NMIST
NMI Status Flag
0: No NMI pin request is generated
1: An NMI pin request is generated
R
b7 to b1
Reserved
These bits are read as 0 and cannot be modified.
R
The NMISR register is used to monitor the non-maskable interrupt status.
To clear the NMISR.NMIST flag to 0, set the NMICLR.NMICLR bit to 1. After that, confirm that the NMISR.NMIST
flag is 0, and then execute the next instruction.
NMIST Flag (NMI Status Flag)
The NMIST flag indicates the NMI pin interrupt request.
This is a read-only flag and is cleared by the NMICR bit in NMICLR.
[Setting condition]
•
This flag is set to 1 when an edge specified by the NMIMD bit in NMICR is input to the NMI pin while the NMIEN
bit in NMIER is 1 (NMI pin interrupt enable).
[Clearing condition]
•
This flag is cleared to 0 by writing 1 to the NMICLR bit in NMICLR.
Summary of Contents for RX600 Series
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