Motorola MC68030 User Manual page 164

31 LONG WORD OPERAND (REGISTER)
OP0 OP1
D31
Figure 7-11. Misaligned Cachable Long-Word Transfer from Word Port Example
15
OP2
D31
MSB
XXX
OP3
Figure 7-12. Misaligned Word Transfer to Word Port Example
MOTOROLA
OP2
31
31
DATA BUS
D16
WORD MEMORY
MSB
LSB
PR OP0
OP1 OP2
OP3 N
N1 N2
WORD OPERAND 0
OP3
DATA BUS D16
WORD MEMORY
LSB
OP2
XXX
MC68030 USER'S MANUAL
0
OP3
CACHE ENTRIES
PR OP0
OP3 N
MC68EC030
A0
SIZ1 SIZ0 A1
0 0 0
1 1 0
0 1 1
1 0 1
MC68030
SIZ1 SIZ0 A2 A1 A0
1 0 0 0 1
0 1 0 1 0
Bus Operation
OP1
N1
MEMORY CONTROL
A0 DSACK1 DSACK0
0 1 L H
1 0 L H
0 0 L H
1 0 L H
MEMORY CONTROL
DSACK1 DSACK0
L H
L H
0
OP2
0
N2
7-17