Analog Devices ADSP-TS101 TigerSHARC Hardware Reference Manual page 136

Exceptions
The return is executed by transferring the return address from
(or from where it has been stored) to
DBGE
the instruction should be executed.
RTI
If an exception occurs when it is not enabled, the exception is cleared and
not serviced.
EXCEPTION
OCCURS
ILAT[62] SET
Figure 4-2. Software Exception (Interrupt)
4-24
ENABLED?
IMASK[62] SET]
YES
INSERT ISR FETCH ADDRESS
STORE PC IN RETS
FLUSH INSTRUCTIONS IN PIPE
ISR@EX2
STORE RETS IN MEMORY
STORE RETI
EXECUTE ISR
SAVE RETSFROM MEMORY TO RETI
RTI; RESTORE RESTI
ADSP-TS101 TigerSHARC Processor
without using
RETI
EXCEPTION
CLEARED
NO
JUMP TO RETI
Hardware Reference
or
RETS
. Then
RETIB