5- 16 M68020 USER’S MANUAL MOTOROLA
LONG-WORD OPERAND (REGISTER)
1 0 1 0
1 1 0 0
Figure 5-11. Misaligned Long-Word Operand Read
from Word Port Example
Figures 5-12 and 5-13 show a word transfer (write) to an odd address in word-organized
memory. This example is similar to the one shown in Figures 5-9 and 5-10 except that the
operand is word sized and the transfer requires only two bus cycles. Figure 5-14 shows
the equivalent operation for a data read cycle.
1 0 1 0
Figure 5-12. Misaligned Word Operand Write to Word Port Example
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