MC68020 Datasheet, PDF (82/306 Pages) Motorola, Inc – MICROPROCESSORS USERS MANUAL

S0
S2
S4
S0
S2
S4
S0
S2
S4
CLK
*^A31-A2
A1
A0
FC2–FC0
SIZ1
WORD
SIZ0
BYTE
R/W
** ECS
** OCS
AS
DS
DSACK1
DSACK0
** DBEN
D31–D24
OP2
OP3
OP3
D23–D16
OP3
OP3
OP3
D15–D8
OP2
OP3
OP3
D7–D0
OP3
WORD WRITE
OP3
BYTE WRITE
OP3
BYTE WRITE
* ^{For the MC68EC020, A23–A2.}
This signal does not apply to the MC68EC020.
Figure 5-26. Byte and Word Write Cycles—32-Bit Port
MOTOROLA
M68020 USER’S MANUAL
5-35