Freescale Semiconductor PowerQUICC MPC885 Reference Manual page 955

CPM Interrupt Controller
7. Execute the rfi instruction. If any unmasked SCCE bits remain (either not cleared by the software
or set by the MPC885 during the execution of this handler), this interrupt source is pending again
immediately after the rfi instruction.
MPC885 PowerQUICC Family Reference Manual, Rev. 2
Freescale Semiconductor 35-11