MC68030 Datasheet, PDF (236/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Bus Operation
CLK
A31-A0
S0 S1 S2 Sw Sw Sw Sw Sw Sw S3 Sw Sw Sw Sw S4 S5
S0 S1 S2 S3 Sw Sw Sw Sw S4 S5
A3:A0 = 1000
FC2-FC0
SIZ1–SIZ0
R/W
ECS
OCS
AS
DS
DSACK1
DSACK0
STERM
CIIN
CIOUT
CBREQ
CBACK
D31–D0
b4–b7
bC–bF
DBEN
BERR
HALT
BURST ABORTED
RERUN CYCLE TO GET LAST
BUS ERROR ASSERTED INTERNAL
3 BYTES OF OPERAND
PROCESSING
0111
1000
VALUE OF A3:A0 INCREMENTED BY THE SYSTEM HARDWARE
Figure 7-53. Long-Word Operand Request — BERR on Second Access
7-90
MC68030 USER’S MANUAL
MOTOROLA