Motorola DSP56301 - Manual (Page 323)

Interrupt Sources and Priorities
Programming Reference B -11
Table B-4. Interrupt Source Priorities Within an IPL
Priority Interrupt Source
Level 3 (nonmaskable)
Highest Hardware RESET
Stack error
Illegal instruction
Debug request interrupt
Trap
Nonmaskable interrupt
Lowest Nonmaskable Host Command Interrupt
Levels 0, 1, 2 (maskable)
Highest IRQA (external interrupt)
IRQB (external interrupt)
IRQC (external interrupt)
IRQD (external interrupt)
DMA channel 0 interrupt
DMA channel 1 interrupt
DMA channel 2 interrupt
DMA channel 3 interrupt
DMA channel 4 interrupt
DMA channel 5 interrupt
Host command interrupt
Host PCI Transaction Termination
Host PCI Transaction Abort
Host PCI Parity Error
Host PCI Transfer Complete
Host PCI Master Receive Request
Host Slave Receive Request
Host PCI Master Transmit Request
Host Slave Transmit Request
Host PCI Master Address Request
ESSI0 RX data with exception interrupt
ESSI0 RX data interrupt