Datasheet
Section 3 Exception Handling 
Rev. 3.00 Mar. 15, 2006 Page 52 of 526 
REJ09B0060-0300   
3.2.6 Interrupt Flag Register 2 (IRR2) 
IRR2 is a status flag register for timer B1 overflow interrupts. 
Bit Bit Name 
Initial 
Value R/W Description 
7 
6 
 
 
0 
0 
 
 
Reserved 
These bits are always read as 0. 
5 IRRTB1 0  R/W Timer B1 Interrupt Request flag 
[Setting condition] 
When the timer B1 counter value overflows 
[Clearing condition] 
When IRRTB1 is cleared by writing 0 
4 
3 
2 
1 
0 
 
 
 
 
 
1 
1 
1 
1 
1 
 
 
 
 
 
Reserved 
These bits are always read as 1. 










