HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 134
HD6417144
Manufacturer Part Number
HD6417144
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417144.pdf
(930 pages)
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6. Interrupt Controller (INTC)
6.5
Table 6.2 lists interrupt sources and their vector numbers, vector table address offsets and interrupt
priorities.
Each interrupt source is allocated a different vector number and vector table address offset. Vector
table addresses are calculated from the vector numbers and address offsets. In interrupt exception
processing, the exception service routine start address is fetched from the vector table indicated by
the vector table address. For the details of calculation of vector table address, see table 5.4.
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 J (IPRA to IPRJ). However,
the smaller vector number has interrupt source, the higher priority ranking is assigned among two
or more interrupt sources specified by the same IPR, and the priority ranking cannot be changed.
A power-on reset assigns priority level 0 to IRQ interrupts and on-chip peripheral module
interrupts. If the same priority level is assigned to two or more interrupt sources and interrupts
from those sources occur simultaneously, they are processed by the default priority order indicated
in table 6.2.
Table 6.2
Rev.4.00 Mar. 27, 2008 Page 90 of 882
REJ09B0108-0400
Interrupt
Source
External pin
User break
H-UDI
—
Interrupts
Interrupt Exception Processing Vectors Table
Interrupt Exception Processing Vectors and Priorities
Name
NMI
Reserved by system 15
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
Vector
No.
11
12
14
64
65
66
67
68
69
70
71
Vector Table
Starting Address IPR
H'0000002C
H'00000030
H'00000038
H'0000003C
H'00000100
H'00000104
H'00000108
H'0000010C
H'00000110
H'00000114
H'00000118
H'0000011C
—
—
—
—
IPRA15 to IPRA12
IPRA11 to IPRA8
IPRA7 to IPRA4
IPRA3 to IPRA0
IPRB15 to IPRB12
IPRB11 to IPRB8
IPRB7 to IPRB4
IPRB3 to IPRB0
Default
Priority
High
Low
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