MC68030 Datasheet, PDF (224/602 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
7-78
S0
S2
S4
S0
S2
S4
S0
S2
(0000)
BREAKPOINT ENCODING
BREAKPOINT NUMBER
CPU SPACE
WORD
READ CYCLE
BREAKPOINT
ACKNOWLEDGE
INSTRUCTION WORD
FETCH
FETCHED
INSTRUCTION
EXECUTION
Figure 7-47. Breakpoint Acknowledge Cycle Timing
MC68030 USER’S MANUAL
MOTOROLA