Motorola M68000 User Manual page 92

Vectors Numbers
Hex
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10–17
18
19
1A
1B
1C
1D
1E
1F
20–2F
30–3F
40–FF
NOTES:
1.
2.
3.
4.
5.
6.
MOTOROLA M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
Freescale Semiconductor, Inc.
Table 6-2. Exception Vector Assignment
Address
Decimal Dec Hex
0 0 000
1 4 004
2 8 008
3 12 00C
4 16 010
5 20 014
6 24 018
7 28 01C
8 32 020
9 36 024
10 40 028
11 44 02C
12 1
48 030
13 1
52 034
14 56 038
15 60 03C
16–23 1
64 040
92 05C
24 96 060
25 100 064
26 104 068
27 108 06C
28 112 070
29 116 074
30 120 078
31 124 07C
32–47 128 080
188 0BC
48–63 1
192 0C0
255 0FF
64–255 256 100
1020 3FC
Vector numbers 12, 13, 16–23, and 48–63 are reserved for future
enhancements by Motorola. No user peripheral devices should be
assigned these numbers.
Reset vector (0) requires four words, unlike the other vectors which only
require two words, and is located in the supervisor program space.
The spurious interrupt vector is taken when there is a bus error
indication during interrupt processing.
TRAP #n uses vector number 32+ n.
MC68010 only. This vector is unassigned, reserved on the MC68000
and MC68008.
SP denotes supervisor program space, and SD denotes
supervisor data space.
For More Information On This Product,
Go to: www.freescale.com
Space 6
Assignment
Reset: Initial SSP 2
SP
Reset: Initial PC 2
SP
SD Bus Error
SD Address Error
SD Illegal Instruction
SD Zero Divide
SD CHK Instruction
SD TRAPV Instruction
SD Privilege Violation
SD Trace
SD Line 1010 Emulator
SD Line 1111 Emulator
SD (Unassigned, Reserved)
SD (Unassigned, Reserved)
Format Error 5
SD
SD Uninitialized Interrupt Vector
SD (Unassigned, Reserved)
—
Spurious Interrupt 3
SD
SD Level 1 Interrupt Autovector
SD Level 2 Interrupt Autovector
SD Level 3 Interrupt Autovector
SD Level 4 Interrupt Autovector
SD Level 5 Interrupt Autovector
SD Level 6 Interrupt Autovector
SD Level 7 Interrupt Autovector
TRAP Instruction Vectors 4
SD
—
SD (Unassigned, Reserved)
—
SD User Interrupt Vectors
—
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