DSP56309EVM Freescale Semiconductor, DSP56309EVM Datasheet - Page 76

• Manufacturer Part Number: DSP56309EVM
• Description: KIT EVALUATION FOR XC56309
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of DSP56309EVM

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Description/function: Audio DSPs
• Product: Audio Modules
• For Use With/related Products: DSP56309
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Core Configuration
4.4.3 Processing Interrupt Source Priorities Within an IPL
If more than one interrupt request is pending when an instruction executes, the interrupt source
with the highest IPL is serviced first. When several interrupt requests with the same IPL are
pending, another fixed-priority structure within that IPL determines which interrupt source is
serviced first. Table 4-6 shows this fixed-priority list of interrupt sources within an IPL, from
highest to lowest at each level The interrupt mask bits in the Status Register (I[1–0]) can be
programmed to ignore low priority-level interrupt requests.
4-18
Starting Address
Interrupt
VBA:$4C
VBA:$5C
VBA:$FE
VBA:$44
VBA:$46
VBA:$48
VBA:$4A
VBA:$4E
VBA:$50
VBA:$52
VBA:$54
VBA:$56
VBA:$58
VBA:$5A
VBA:$5E
VBA:$60
VBA:$62
VBA:$64
VBA:$66
:
Priority
Highest
Priority Level
Interrupt
Table 4-6. Interrupt Source Priorities Within an IPL
Range
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
0–2
:
Hardware RESET
Stack error
Table 4-5. Interrupt Sources (Continued)
ESSI1 receive last slot
ESSI1 transmit data
ESSI1 transmit last slot
Reserved
Reserved
SCI receive data
SCI transmit data
SCI idle line
SCI timer
Reserved
Reserved
Reserved
Reserved
:
Reserved
ESSI1 transmit data with exception status
SCI receive data with exception status
Host receive data full
Host transmit data empty
Host command (default)
DSP56309 User’s Manual, Rev. 1
Level 3 (nonmaskable)
Interrupt Source
Interrupt Source
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