4-14
DSP56309UM/D MOTOROLA
Core Configuration
Interrupt Sources and Priorities
4.4.3
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 having the
same IPL are pending, another fixed-priority structure within that IPL determines which
interrupt source is serviced first. This fixed priority list of interrupt sources within an
IPL is shown in
Table 4-4
Interrupt Source Priorities within an IPL
Priority
Interrupt Source
Level 3 (Nonmaskable)
Highest
Hardware RESET
Ñ
Stack Error
Ñ
Illegal Instruction
Ñ
Debug Request Interrupt
Ñ
Trap
Lowest
Non-Maskable Interrupt
Levels 0, 1, 2 (Maskable)
Highest
IRQA (External Interrupt)
Ñ
IRQB (External Interrupt)
Ñ
IRQC (External Interrupt)
Ñ
IRQD (External Interrupt)
Ñ
DMA Channel 0 Interrupt
Ñ
DMA Channel 1 Interrupt
Ñ
DMA Channel 2 Interrupt
Ñ
DMA Channel 3 Interrupt
Ñ
DMA Channel 4 Interrupt
Ñ
DMA Channel 5 Interrupt
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
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