ADSP-21368 SHARC Processor Hardware Reference xxiii
Contents
Designing for High Frequency Operation .................................. 14-33
Clock Specifications and Jitter ............................................. 14-33
Other Recommendations and Suggestions ............................ 14-34
Decoupling Capacitors and Ground Planes .......................... 14-35
Oscilloscope Probes ............................................................. 14-35
Recommended Reading ....................................................... 14-36
Booting .................................................................................... 14-37
External Port Booting .......................................................... 14-39
Booting Through the AMI .............................................. 14-39
Shared Memory Booting ................................................. 14-40
SPI Port Booting ................................................................. 14-42
32-Bit SPI Host Boot ...................................................... 14-43
16-Bit SPI Host Boot ...................................................... 14-44
8-Bit SPI Host Boot ........................................................ 14-46
Slave Boot Mode ............................................................. 14-47
Master Boot .................................................................... 14-48
Booting From an SPI Flash .............................................. 14-51
Booting From an SPI PROM (16-Bit address) .................. 14-52
Booting From an SPI Host Processor ............................... 14-52
Data Delays, Latencies, and Throughput ................................... 14-52
Execution Stalls ................................................................... 14-53
DAG Stalls .......................................................................... 14-54
Memory Stalls ..................................................................... 14-54
IOP Register Stalls ............................................................... 14-55