MC68030 Datasheet, PDF (260/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Exception Processing
.
ENTRY
S1
M0
T0, T1 0
I2-I0 $7
VBR $0
CACR $0
INSTRUCTION AND
DATA CACHE
ENTRIES INVALIDATED
FETCH VECTOR #0
OTHERWISE
SP (VECTOR #0)
FETCH VECTOR #1
BUS ERROR
(DOUBLE BUS FAULT)
ASSERT STATUS
CONTINUOUSLY
OTHERWISE
PC (VECTOR #1)
PREFETCH 3 WORDS
EXIT
BUS ERROR
(DOUBLE BUS FAULT)
ASSERT STATUS
CONTINUOUSLY
OTHERWISE
BEGIN INSTRUCTION
EXECUTION
EXIT
EXIT
BUS ERROR OR ADDRESS ERROR
(DOUBLE BUS FAULT)
ASSERT STATUS
CONTINUOUSLY
EXIT
Figure 8-1. Reset Operation Flowchart
8-6
MC68030 USER’S MANUAL
MOTOROLA