Renesas SH7264 User Manual

Page of 2152
 
 
 
 
Section 7   Interrupt Controller 
 
R01UH0134EJ0400  Rev. 4.00  
 
Page 165 of 2108 
Sep 24, 2014 
 
 
 
SH7262 Group, SH7264 Group 
Bit Bit 
Name 
Initial 
Value R/W
Description 
NMIF 
NMI Interrupt Request 
This bit indicates the status of the NMI interrupt 
request. This bit cannot be modified. 
0: NMI interrupt request has not occurred 
[Clearing conditions] 
  Cleared by changing NMIE of ICR0 
  Cleared by executing NMI interrupt exception 
handling 
1: NMI interrupt request is detected 
[Setting condition] 
  Edge corresponding to NMIE of ICR0 has occurred 
at NMI pin 
Note: Only 640-Kbyte version is valid. For 1-Mbyte 
version, this bit is reserved and always read as 0. 
The write value should always be 0. 
0 NMIM 
1 R/(W)
*
2
 
NMI Mask 
Selects whether to enable interrupt request input to 
external interrupt input pin NMI. 
0: NMI input interrupt request is enabled 
1: NMI input interrupt request is masked 
Note: Only 640-Kbyte version is valid. For 1-Mbyte 
version, this bit is reserved and always read as 0. 
The write value should always be 0.