Processor: ADSP-213xx/ADSP-214xx
In earlier SHARC processors, circular buffering is always enabled by default.
To maintain code compatibility when porting programs to the ADSP-213xx/ADSP-214xx processors, the following instruction should be included:
Bit Set Mode1 CBUFEN;
This operation only needs to be performed once in the program. Next, load the buffer's base address into the B register, which will automatically update the corresponding I register. If an offset is needed, the I register can be adjusted accordingly.