MC68030 Datasheet, PDF (232/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Bus Operation
CLK
A31-A20
A19-A16
A15-A2
A1-A0
FC2-FC0
SIZ1
SIZ0
R/W
ECS
OCS
AS
DS
DSACK1
DSACK0
DBEN
D31 -D24
D23-D16
D15-D8
D7-D0
BERR
HALT
S0
S2
S4
S0
S2
S4
S0
S2
(0000)
BREAKPOINT ENCODING
BREAKPOINT NUMBER
CPU SPACE
WORD
READ CYCLE
BREAKPOINT
ACKNOWLEDGE
BUS ERROR
ASSERTED
Figure 7-49. Bus Error without DSACKx
FETCHED
INSTRUCTION
EXECUTION
7-86
MC68030 USER’S MANUAL
MOTOROLA