EXCEPTION PROCESSING STATE (INTERRUPT PROCESSING)
MOTOROLA
PROCESSING STATES 7 - 13 and their IPLs are listed in Table 7-6. For information on on-chip peripheral interrupt pri-(a) DSP56K Fast Interrupt(b) DSP56K Long Interrupt
EXPLICIT RETURN
FROM INTERRUPT

RECOGNIZED

MAIN
PROGRAM
MAIN
PROGRAM
$0100 —
$0101
$0104
$0105
$0106
MACR
REP
MAC
—
$0102
$0103
MOVE
MAC
INTERRUPT
RECOGNIZED
IMPLICIT RETURN
FROM INTERRUPT
SSI RECEIVE DATA

FAST INTERRUPT SERVICE ROUTINE

$000C
$000D
MOVEP
XXXXXX
INTERRUPT
RECOGNIZED JSR INSTRUCTION
FORMS LONG
INTERRUPT SERVICE
$0100 —
$0101
$000E
$000F
$0104
$0105
$0106
MACR
JSR
$0300
REP
MAC
—
$0102
$0103
MOVE
MAC
SSI RECEIVE DATA
WITH EXCEPTION STATUS

LONG INTERRUPT SERVICE ROUTINE

$0300
$0301
—
DO
$0303
$0304
MOVE
RTI
Figure 7-1 Fast and Long Interrupt Examples