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PM0056 датащи(PDF) 36 Page - STMicroelectronics

номер детали PM0056
подробное описание детали  This programming manual provides information
PDF  156 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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PM0056 датащи(HTML) 36 Page - STMicroelectronics

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The Cortex-M3 processor
PM0056
36/156
DocID15491 Rev 5
2.3.4
Vector table
The vector table contains the reset value of the stack pointer, and the start addresses, also
called exception vectors, for all exception handlers. Figure 12 on page 36 shows the order
of the exception vectors in the vector table. The least-significant bit of each vector must be
1, indicating that the exception handler is Thumb code.
Figure 12. Vector table
On system reset, the vector table is fixed at address 0x00000000. Privileged software can
write to the VTOR to relocate the vector table start address to a different memory location, in
the range 0x00000080 to 0x3FFFFF80, see Vector table offset register (SCB_VTOR) on
page 133.
2.3.5
Exception priorities
As Table 16 on page 34 shows, all exceptions have an associated priority, with:
•
A lower priority value indicating a higher priority
•
Configurable priorities for all exceptions except Reset, Hard fault, and NMI.
Initial SP value
Reset
Hard fault
NMI
Memory management fault
Usage fault
Bus fault
0x0000
0x0004
0x0008
0x000C
0x0010
0x0014
0x0018
Reserved
SVCall
PendSV
Reserved for Debug
Systick
IRQ0
Reserved
0x002C
0x0038
0x003C
0x0040
Offset
Exception number
2
3
4
5
6
11
12
14
15
16
18
13
7
10
1
Vector
.
.
.
8
9
IRQ1
IRQ2
0x0044
IRQ67
17
0x0048
0x004C
83
.
.
.
.
.
.
0x014C
IRQ number
-14
-13
-12
-11
-10
-5
-2
-1
0
2
1
67
ai15995



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