Datasheet

Chapter 9. Interrupt Controller 9-5
Interrupt Controller Registers
9.2.2 Autovector Register (AVR)
The autovector register (AVR), shown in Figure 9-3, enables external interrupt sources to
be autovectored, using the vector offset defined in Table 2-19 in Section 2.8, “Exception
Processing Overview.” Note that the autovector enable for internal interrupt sources applies
for respective ICRs.
Table 9-5 describes AVR fields.
16 4 100 11 Internal module xxx
17 100 10 xxx
18 xxx xx External interrupt pin IRQ5 (programmed as IRQ4) 1xx
19 100 01 Internal module xxx
20 100 00 xxx
21 3 011 11 Internal module xxx
22 011 10 xxx
23 xxx xx External interrupt pin IRQ3 x0x
24 011 01 Internal module xxx
25 011 00 xxx
26 2 010 11 Internal module xxx
27 010 10 xxx
28 xxx xx External interrupt pin IRQ1 (programmed as IRQ2) xx1
29 010 01 Internal module xxx
30 010 00 xxx
31 1 001 11 Internal module xxx
32 001 10 xxx
33 xxx xx External interrupt pin IRQ1 xx0
34 001 01 Internal module xxx
35 001 00 xxx
76543210
Field AVEC BLK
Reset 0000_0000
R/W R/W
Address MBAR + 0x04B
Figure 9-3. Autovector Register (AVR)
Table 9-4. Interrupt Priority Scheme (Continued)
Priority
Interrupt
Level
ICR
Interrupt Source IRQPAR[IRQPAR]
IL IP