MC68030 Datasheet, PDF (433/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Coprocessor Interface Description
The M68000 coprocessor response primitive formats are shown in this section. Any
response primitive with bits [13:8]=$00 or $3F causes a protocol violation exception.
Response primitives with bits [13:8]=$0B, $18-$1B, $1F, $28-$2B, and $38-3B currently
cause protocol violation exceptions; they are undefined and reserved for future use by
Motorola.
BUSY
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
1 PC 1
0
0
1
0
0
0
0
0
0
0
0
0
0
TRANSFER MULTIPLE COPROCESSOR REGISTERS
15 14 13 12 11 10
9
8
CA PC DR 0
0
0
0
1
70
LENGTH
TRANSFER STATUS REGISTER AND SCANPC
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CA PC DR 0
0
0
1 SP 0
0
0
0
0
0
0
0
SUPERVISOR CHECK
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
1 PC 0
0
0
1
0
0
0
0
0
0
0
0
0
0
TAKE ADDRESS AND TRANSFER DATA
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CA PC DR 0
0
1
0
1
LENGTH
TRANSFER MULTIPLE MAIN PROCESSOR REGISTERS
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CA PC DR 0
0
1
1
0
0
0
0
0
0
0
0
0
TRANSFER OPERATION WORD
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
CA PC 0
0
0
1
1
1
0
0
0
0
0
0
0
0
MOTOROLA
MC68030 USER’S MANUAL
10-73