參數(shù)資料
型號： EC000UM
英文描述： EC000 Core User＇s Manual (SCM68000)
中文描述： EC000核心用戶手冊（SCM68000）
文件頁數(shù)： 143/145頁
文件大?。?/td> 829K
代理商： EC000UM
Exception Processing
4-12
EC000 CORE PROCESSOR USER’S MANUAL
MOTOROLA
Table 4-2. Exception Vector Assignment
Vectors Numbers
Address
Space5
Assignment
Hex
Decimal
Dec
Hex
0
000
SP
Reset: Initial SSP2
1
4
004
SP
Reset: Initial PC2
2
8
008
SD
Bus Error
3
12
00C
SD
Address Error
4
16
010
SD
Illegal Instruction
5
20
014
SD
Divide-by-Zero
6
24
018
SD
CHK Instruction
7
28
01C
SD
TRAPV Instruction
8
32
020
SD
Privilege Violation
9
36
024
SD
Trace
A
10
40
028
SD
Line 1010 Emulator
B
11
44
02C
SD
Line 1111 Emulator
C
121
48
030
SD
(Unassigned, Reserved)
D
131
52
034
SD
(Unassigned, Reserved)
E
141
56
038
SD
(Unassigned, Reserved)
F
15
60
03C
SD
Uninitialized Interrupt Vector
10–17
16–231
64
040
SD
(Unassigned, Reserved)
92
05C
18
24
96
060
SD
Spurious Interrupt3
19
25
100
064
SD
Level 1 Interrupt Autovector
1A
26
104
068
SD
Level 2 Interrupt Autovector
1B
27
108
06C
SD
Level 3 Interrupt Autovector
1C
28
112
070
SD
Level 4 Interrupt Autovector
1D
29
116
074
SD
Level 5 Interrupt Autovector
1E
30
120
078
SD
Level 6 Interrupt Autovector
1F
31
124
07C
SD
Level 7 Interrupt Autovector
20–2F
32–47
128
080
SD
TRAP Instruction Vectors4
188
0BC
30–3F
48–631
192
0C0
SD
(Unassigned, Reserved)
255
0FF
40–FF
64–255
256
100
SD
User Interrupt Vectors
1020
3FC
NOTES:
1.Vector numbers 12–14, 16–23, and 48–63 are reserved for future enhancements by
Motorola. No user peripheral devices should be assigned these numbers.
2.Reset vector (0) requires four words, unlike the other vectors which only require two
words, and is located in the supervisor program space.
3.The spurious interrupt vector is taken when there is a bus error indication during
interrupt processing.
4.TRAP #n uses vector number 32+ n (decimal).
5.SP denotes supervisor program space, and SD denotes supervisor data space.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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