Figure 4-1 Interrupt Priority Register C (Ipr-C) (X:$Ffffff); Figure; Table 4-3 Interrupt Priority Level Bits - Motorola DSP56305 User Manual

Core Configuration
Interrupt Sources and Priorities
xxL1
There are two interrupt priority registers in the DSP56305. The IPR-C is dedicated to
DSP56300 core interrupt sources and IPR-P is dedicated to DSP56305 peripheral
interrupt sources. IPR-C is shown on Figure 4-1 on page 4-16 and IPR-P is shown in
Figure 4-2 on page 4-17.
11 10
IDL2 IDL1 IDL0
23 22
D5L1 D5L0 D4L1

Figure 4-1 Interrupt Priority Register C (IPR-C) (X:$FFFFFF)

4-16

Table 4-3 Interrupt Priority Level Bits

IPL bits
Interrupts
Enabled
xxL0
0 0 No
0 1 Yes
1 0 Yes
1 1 Yes
9 7 6
8
ICL2 ICL1 ICL0
21 20 19 18
D4L0 D3L1 D3L0
DSP56305 User's Manual
Interrupts
Masked
—
0
0, 1
0, 1, 2
5 4 3 2
IBL2 IBL1 IBL0 IAL2
17 16 15 14
D2L1 D2L0 D1L1 D1L0
Interrupt
Priority
Level
0
1
2
3
1 0
IAL1 IAL0
IRQA IPL
IRQA mode
IRQB IPL
IRQB mode
IRQC IPL
IRQC mode
IRQD IPL
IRQD mode
13 12
D0L1 D0L0
DMA0 IPL
DMA1 IPL
DMA2 IPL
DMA3 IPL
DMA4 IPL
DMA5 IPL
MOTOROLA
AA1410