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Chapter 4 Interrupt (S12ZINTV0)
MC9S12ZVM Family Reference Manual Rev. 1.3
130
Freescale Semiconductor
•
One non-maskable unimplemented page2 op-code trap
•
One non-maskable software interrupt (SWI)
•
One non-maskable system call interrupt (SYS)
•
One non-maskable machine exception vector request
•
One spurious interrupt vector request
•
One system reset vector request
Each of the I-bit maskable interrupt requests can be assigned to one of seven priority levels supporting a
flexible priority scheme. The priority scheme can be used to implement nested interrupt capability where
interrupts from a lower level are automatically blocked if a higher level interrupt is being processed.
4.1.1
Glossary
The following terms and abbreviations are used in the document.
4.1.2
Features
•
Interrupt vector base register (IVBR)
•
One system reset vector (at address 0xFFFFFC).
•
One non-maskable unimplemented page1 op-code trap (SPARE) vector (at address vector base
1
+
0x0001F8).
•
One non-maskable unimplemented page2 op-code trap (TRAP) vector (at address vector base
0x0001F4).
•
One non-maskable software interrupt request (SWI) vector (at address vector base
•
One non-maskable system call interrupt request (SYS) vector (at address vector base
+
0x00001EC).
•
One non-maskable machine exception vector request (at address vector base
+ 0x0001E8
)
.
•
One spurious interrupt vector (at address vector base
+ 0x0001DC).
•
One X-bit maskable interrupt vector request associated with XIRQ (at address vector base
0x0001D8).
Table 4-2. Terminology
Term
Meaning
CCW
Condition Code Register (in the S12Z CPU)
DMA
Direct Memory Access
INT
Interrupt
IPL
Interrupt Processing Level
ISR
Interrupt Service Routine
MCU
Micro-Controller Unit
IRQ
refers to the interrupt request associated with the IRQ pin
XIRQ
refers to the interrupt request associated with the XIRQ pin
1. The vector base is a 24-bit address which is accumulated from the contents of the interrupt vector base register (IVBR, used
as the upper 15 bits of the address) and 0x000 (used as the lower 9 bits of the address).
Содержание MC9S12ZVM series
Страница 116: ...Chapter 2 Port Integration Module S12ZVMPIMV1 MC9S12ZVM Family Reference Manual Rev 1 3 116 Freescale Semiconductor ...
Страница 242: ...Chapter 7 ECC Generation Module SRAM_ECCV1 MC9S12ZVM Family Reference Manual Rev 1 3 242 Freescale Semiconductor ...
Страница 384: ...Chapter 10 Supply Voltage Sensor BATSV3 MC9S12ZVM Family Reference Manual Rev 1 3 384 Freescale Semiconductor ...
Страница 484: ...Chapter 13 Programmable Trigger Unit PTUV2 MC9S12ZVM Family Reference Manual Rev 1 3 484 Freescale Semiconductor ...
Страница 662: ...Chapter 17 Gate Drive Unit GDUV4 MC9S12ZVM Family Reference Manual Rev 1 3 662 Freescale Semiconductor ...
Страница 684: ...Chapter 18 LIN Physical Layer S12LINPHYV2 MC9S12ZVM Family Reference Manual Rev 1 3 684 Freescale Semiconductor ...
Страница 740: ...Chapter 19 128 KB Flash Module S12ZFTMRZ128K512V2 MC9S12ZVM Family Reference Manual Rev 1 3 740 Freescale Semiconductor ...
Страница 756: ...Appendix A MCU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 756 Freescale Semiconductor ...
Страница 772: ...Appendix D LINPHY Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 772 Freescale Semiconductor ...
Страница 776: ...Appendix E GDU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 776 Freescale Semiconductor ...
Страница 788: ...Appendix I MSCAN Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 788 Freescale Semiconductor ...
Страница 790: ...Appendix J Package Information MC9S12ZVM Family Reference Manual Rev 1 3 790 Freescale Semiconductor ...