Datasheet
Section 4 Exception Handling 
Page 96 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
4.2  Exception Sources and Exception Vector Table 
Different vector addresses are assigned to different exception sources. Table 4.2 lists the exception 
sources and their vector addresses. Since the usable modes differ depending on the product, for 
details on each product, refer to section 3, MCU Operating Modes. 
Table 4.2  Exception Handling Vector Table 
  Vector Address*
1
Exception Source  Vector Number  Normal Mode*
2
 Advanced Mode 
Power-on reset  0  H'0000 to H'0001  H'0000 to H'0003 
Manual reset*
3
  1  H'0002 to H'0003  H'0004 to H'0007 
Reserved for system use  2  H'0004 to H'0005  H'0008 to H'000B 
  3  H'0006 to H'0007  H'000C to H'000F 
Illegal instruction  4  H'0008 to H'0019  H'0010 to H'0013 
Trace  5  H'000A to H'000B  H'0014 to H'0017 
Interrupt (direct transition)*
3
  6  H'000C to H'000D  H'0018 to H'001B 
Interrupt (NMI)  7  H'000E to H'000F  H'001C to H'001F 
Trap instruction (#0)  8  H'0010 to H'0011  H'0020 to H'0023 
(#1)  9  H'0012 to H'0013  H'0024 to H'0027 
(#2)  10  H'0014 to H'0015  H'0028 to H'002B 
(#3)  11  H'0016 to H'0017  H'002C to H'002F 
Reserved for system use  12  H'0018 to H'0019  H'0030 to H'0033 
  13  H'001A to H'001B  H'0034 to H'0037 
  14  H'001C to H'001D  H'0038 to H'003B 
  15  H'001E to H'001F  H'003C to H'003F 
External interrupt  IRQ0  16  H'0020 to H'0021  H'0040 to H'0043 
  IRQ1  17  H'0022 to H'0023  H'0044 to H'0047 
  IRQ2  18  H'0024 to H'0025  H'0048 to H'004B 
  IRQ3  19  H'0026 to H'0027  H'004C to H'004F 
  IRQ4  20  H'0028 to H'0029  H'0050 to H'0053 
  IRQ5  21  H'002A to H'002B  H'0054 to H'0057 
  IRQ6  22  H'002C to H'002D  H'0058 to H'005B 










