Interrupt Source Priorities Within An Ipl; Figure 4-2 Interrupt Priority Register P (Ipr-P) (X:$Fffffe) - Motorola DSP56305 User Manual

11 10 9
FIL0
FIL1 T0L1
22
23 21

Figure 4-2 Interrupt Priority Register P (IPR-P) (X:$FFFFFE)

4.5.3

Interrupt Source Priorities Within an IPL

If more than one interrupt request is pending when an instruction is executed, the
interrupt source with the highest IPL is serviced first. When several interrupt requests
having the same IPL are pending, another fixed-priority structure within that IPL
determines which interrupt source is serviced first. The fixed priority of interrupt
sources within an IPL is listed in Table 4-4.
MOTOROLA
8 7 6 5
T0L0 SCL1 SCL0 S1L1
20 19 18 17
DSP56305 User's Manual
Interrupt Sources and Priorities
4 3 2 1
S1L0 S0L1 S0L0 HPL1
16 15 14 13
CIL1 CIL0 VIL1
Core Configuration
0
HPL0
HI32 IPL
ESSI0 IPL
ESSI1 IPL
SCI IPL
Triple Timer IPL
FCOP IPL
12
VIL0
Reserved
VCOP IPL
CCOP IPL
AA1411
4-17