Datasheet
Section 5 Interrupt Controller 
R01UH0310EJ0500 Rev. 5.00    Page 129 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
5.5  Interrupt Exception Handling Vector Table 
Table 5.2 shows interrupt exception handling sources, vector addresses, and interrupt priorities. 
For default priorities, the lower the vector number, the higher the priority. When interrupt control 
mode 2 is set, priorities among modules can be set by means of the IPR. Modules set at the same 
priority will conform to their default priorities. Priorities within a module are fixed. 
Table 5.2  Interrupt Sources, Vector Addresses, and Interrupt Priorities 
Vector 
Address*
1
Interrupt 
Source 
Origin of 
Interrupt 
Source 
Vector 
Number 
Advanced 
Mode IPR  Priority 
DTC 
Activation 
DMAC 
Activation 
NMI 7 H'001C ⎯ High ⎯  ⎯ 
IRQ0  16  H'0040  IPRA14 to IPRA12   
⎯ 
IRQ1  17  H'0044  IPRA10 to IPRA8      ⎯ 
IRQ2  18  H'0048  IPRA6 to IPRA4      ⎯ 
IRQ3  19  H'004C  IPRA2 to IPRA0      ⎯ 
IRQ4  20  H'0050  IPRB14 to IPRB12      ⎯ 
IRQ5  21  H'0054  IPRB10 to IPRB8      ⎯ 
IRQ6  22  H'0058  IPRB6 to IPRB4      ⎯ 
IRQ7  23  H'005C  IPRB2 to IPRB0      ⎯ 
IRQ8*
2
  24  H'0060  IPRC14 to IPRC12      ⎯ 
IRQ9*
2
  25  H'0064  IPRC10 to IPRC8      ⎯ 
IRQ10*
2
  26  H'0068  IPRC6 to IPRC4      ⎯ 
IRQ11*
2
  27  H'006C  IPRC2 to IPRC0      ⎯ 
IRQ12*
2
  28  H'0070  IPRD14 to IPRD12      ⎯ 
IRQ13*
2
  29  H'0074  IPRD10 to IPRD8      ⎯ 
IRQ14*
2
  30  H'0078  IPRD6 to IPRD4      ⎯ 
External 
pin 
IRQ15*
2
  31  H'007C  IPRD2 to IPRD0      ⎯ 
DTC  SWDTEND  32  H'0080  IPRE14 to IPRE12      ⎯ 
WDT  WOVI  33  H'0084  IPRE10 to IPRE8    ⎯  ⎯ 
⎯ Reserved for 
system use 
34  H'0088  IPRE6 to IPRE4    ⎯  ⎯ 
Refresh 
controller 
CMI  35  H'008C  IPRE2 to IPRE0 
Low 
⎯  ⎯ 










