SH7618 Datasheet, PDF (130/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 6 Interrupt Controller (INTC)
6.5 Interrupt Exception Handling Vector Table
Table 6.2 lists interrupt sources, their vector numbers, vector table address offsets, and interrupt
priorities.
Individual interrupt sources are allocated to different vector numbers and vector table address
offsets. Vector table addresses are calculated from the vector numbers and vector table address
offsets. For interrupt exception handling, the start address of the exception handling routine is
fetched from the vector table address in the vector table. For the details on calculation of vector
table addresses, see table 5.4, Calculating Exception Handling Vector Table Addresses in
section 5, Exception Handling.
IRQ interrupts and on-chip peripheral module interrupt priorities can be set freely between 0
and 15 for each pin or module by setting interrupt priority registers A to E (IPRA to IPRE).
However, when interrupt sources whose priority levels are allocated with the same IPR are
requested, the interrupt of the smaller vector number has priority. This priority cannot be changed.
Priority levels of IRQ interrupts and on-chip peripheral module interrupts are initialized to level 0
at a power-on reset. If the same priority level is allocated to two or more interrupt sources and
interrupts from those sources occur simultaneously, they are processed by the default priority
order shown in table 6.2.
Table 6.2 Interrupt Exception Handling Vectors and Priorities
Interrupt
Source
User break
External pin
H-UDI
External pin
WDT
Name
NMI
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
ITI
Vector
No.
12
11
13
64
65
66
67
80
81
82
83
84
Vector Table
Starting Address
H'00000030
H'0000002C
H'00000034
H'00000100
H'00000104
H'00000108
H'0000010C
H'00000140
H'00000144
H'00000148
H'0000014C
H'00000150
Default
IPR
Priority

High


IPRA15 to IPRA12
IPRA11 to IPRA8
IPRA7 to IPRA4
IPRA3 to IPRA0
IPRB15 to IPRB12
IPRB11 to IPRB8
IPRB7 to IPRB4
IPRB3 to IPRB0
IPRC15 to IPRC12 Low
Rev. 6.00 Jun. 12, 2007 Page 98 of 610
REJ09B0131-0600