Motorola MC68020 - Byte and Word Read Cycles-32-Bit Port

5- 28 M68020 USER’S MANUAL MOTOROLA
WORD READ
S0
S2
S4
S0
S2
S4
CLK
A31–A2
A1
A0
FC2–FC0
SIZ1
SIZ0
R/W
ECS
OCS
AS
DS
DSACK1
DSACK0
DBEN
D31–D24
D23–D16
BYTE READ
D15–D8
D7–D0
S0
S2
S4
OP2
OP3
OP3
OP3
WORD
BYTE
BYTE READ
**
**
**
*
*
Figure 5-21. Byte and Word Read Cycles—32-Bit Port