SH7706 Datasheet, PDF (165/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 6 Interrupt Controller (INTC)
6.3.3 IRL Interrupts
IRL interrupts are input by level at pins IRL3 to IRL0. The priority level is the higher of those
indicated by pins IRL3 to IRL0. An IRL3 to IRL0 value of 0 (0000) indicates the highest-level
interrupt request (interrupt priority level 15). A value of 15 (1111) indicates no interrupt request
(interrupt priority level 0). Figure 6.2 shows an examples of an IRL interrupt connection. Table
6.2 shows IRL pins and interrupt levels.
This LSI
Interrupt
request
Priority
encoder
4
IRL3 to IRL0
IRL3 to IRL0
Figure 6.2 Example of IRL Interrupt Connection
Table 6.2 IRL3 to IRL0 Pins and Interrupt Levels
IRL3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
IRL2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
IRL1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
IRL0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Interrupt Priority Level
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Interrupt Request
Level 15 interrupt request
Level 14 interrupt request
Level 13 interrupt request
Level 12 interrupt request
Level 11 interrupt request
Level 10 interrupt request
Level 9 interrupt request
Level 8 interrupt request
Level 7 interrupt request
Level 6 interrupt request
Level 5 interrupt request
Level 4 interrupt request
Level 3 interrupt request
Level 2 interrupt request
Level 1 interrupt request
No interrupt request
Rev. 5.00 May 29, 2006 page 117 of 698
REJ09B0146-0500