參數(shù)資料
型號： MC56F8347VPY60
廠商： MOTOROLA INC
元件分類： 數(shù)字信號處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： LQFP-160
文件頁數(shù)： 92/160頁
文件大小： 2217K
代理商： MC56F8347VPY60
Interrupt Vector Table
568347 Technical Data
37
Preliminary
4.3 Interrupt Vector Table
Table 4-5 provides the reset and interrupt priority structure, including on-chip peripherals. The
table is organized with higher-priority vectors at the top and lower-priority interrupts lower in the
table. The priority of an interrupt can be assigned to different levels, as indicated, allowing some
control over interrupt priorities. All level 3 interrupts will be serviced before level 2, and so on. For
a selected priority level, the lowest vector number has the highest priority.
The location of the vector table is determined by the Vector Base Address (VBA) register. Please
see Section 5.6.11 for the reset value of the VBA.
In some configurations, the reset address and COP reset address will correspond to vector 0 and 1
of the interrupt vector table. In these instances, the first two locations in the vector table must
contain branch or JMP instructions. All other entries must contain JSR instructions.
2.
This mode provides maximum compatibility with 56F80x parts while operating externally.
3.
“EMI_MODE = 0”, EMI_MODE pin is tied to ground at boot up.
4.
“EMI_MODE = 1”, EMI_MODE pin is tied to VDD at boot up.
5.
Not accessible in reset configuration, since the address is above P$0x00 FFFF. The higher bit address/GPIO (and/or chip
selects) pins must be reconfigured before this external memory is accessible.
6.
Booting from this external address allows prototyping of the internal Boot Flash.
7.
The internal Program Flash is relocated in this mode, making it accessible.
Table 4-5 Interrupt Vector Table Contents1
Peripheral
Vector
Number
Priority
Level
Vector Base
Address +
Interrupt Function
Reserved for Reset Overlay2
Reserved for COP Reset Overlay2
core
2
3
P:$04
Illegal Instruction
core
3
P:$06
SW Interrupt 3
core
4
3
P:$08
HW Stack Overflow
core
5
3
P:$0A
Misaligned Long Word Access
core
6
1-3
P:$0C
OnCE Step Counter
core
7
1-3
P:$0E
OnCE Breakpoint Unit 0
Reserved
core
9
1-3
P:$12
OnCE Trace Buffer
core
10
1-3
P:$14
OnCE Transmit Register Empty
core
11
1-3
P:$16
OnCE Receive Register Full
Reserved
core
14
2
P:$1C
SW Interrupt 2
core
15
1
P:$1E
SW Interrupt 1
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