Stereo System User Manual

MOTOROLA DSP96002 USER’S MANUAL A - 325
The term "2 * ap" comes from the two instruction fetches done by the RTS/RTR/RTI instruction to refill the
pipeline.
A.9.12 Addressing Mode Timing Summary
+ ea + ea
Effective Addressing Mode Words Cycles
Address Register Indirect
No Update 0 0
Postincrement by 1 0 0
Postdecrement by 1 0 0
Postincrement by Offset Nn 0 0
Postdecrement by Offset Nn 0 0
Indexed by Offset Nn 0 2
Predecrement by 1 0 2
Long Displacement 1 4
PC Relative
Long Displacement 1 2
Short Displacement 0 0
Address Register 0 0
Special
Immediate Data 1 2
Absolute Address 1 2
Immediate Short Data 0 0
Short Jump Address 0 0
Absolute Short Address 0 0
I/O Short Address 0 0
Implicit 0 0
Figure A-19 Addressing Mode Timing Summary