SH7065 Datasheet, PDF (203/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 6 Interrupt Controller (INTC)
IRL Interrupts
IRL interrupts are requested by input at external pins IRQ3 to IRQ0. Fifteen interrupts, IRL15 to
IRL1, can be input from an external source by means of pins IRQ3 to IRQ0. Interrupts IRL15 to
IRL1 have priority levels of 15 to 1, respectively, and are assigned vector numbers 79 to 64. In
IRL interrupt mode, external interrupts IRQ4 to IRQ7 are independent interrupt sources. The
priority levels of IRQ4 to IRQ7 can be set in interrupt priority register B (IPRB), as in IRQ
interrupt mode. (An example of interrupt connection is shown in figure 6.2.)
Table 6.3
Interrupt
IRL15
IRL14
IRL13
IRL12
IRL11
IRL10
IRL9
IRL8
IRL7
IRL6
IRL5
IRL4
IRL3
IRL2
IRL1

IRL Interrupt Priority Levels and Vector Numbers
IRQ3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Signals
IRQ2
0
0
0
IRQ1
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
IRQ0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Priority Level
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0 (no interrupt)
Vector Number
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
Interrupt
requests
...
Priority
encoder
4
IRQ3–IRQ0
SH7065
Figure 6.2 Example of IRL Mode Interrupt Connection
Rev. 5.00 Sep 11, 2006 page 181 of 916
REJ09B0332-0500