MC68030 Datasheet, PDF (182/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Bus Operation
S0
S2
S4
S0
S2
S4
S0
S2
S4
CLK
A31-A2
A1
A0
FC2-FC0
SIZ1
LONG WORD
SIZ0
WORD
LONG WORD
R/W
ECS
OCS
AS
DS
DSACK1
DSACK0
DBEN
D31-D24
OP0
OP2
OP0
D23-D16
OP1
OP3
OP1
D15-D8
OP2
D7-D0
OP3
WORD READ
WORD READ
LONG WORD OPERAND READ FROM 16-BIT PORT
LONG WORD READ
FROM 32- BIT PORT
Figure 7-23. Long-Word Read — 16-Bit and 32-Bit Port
7-36
MC68030 USER’S MANUAL
MOTOROLA