MC68030 Datasheet, PDF (194/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Bus Operation
S0
S2
S4
Si
Si S6
S8
S10
S0
CLK
A31-A2
A1
A0
FC2-FC0
SIZ1
SIZ0
R/W
RMC
ECS
AS
DS
CIIN
CIOUT
DSACK1
DSACK0
DBEN
D31-D24
OP3
D23-D16
OP3
D15-D8
OP3
OP3
D7-D0
OP3
BERR
HALT
BG
INDIVISIBLE CYCLE
NEXT CYCLE
Figure 7-30. Asynchronous Byte Read-Modify-Write Cycle — 32-Bit Port
(TAS Instruction with CIOUT or CIIN Asserted)
7-48
MC68030 USER’S MANUAL
MOTOROLA