Pre-boot time measures the configuration of all system resources prior to executing the required boot operation.
Default pre-boot time for different processors without OTP programming is given below.
|
Processors
|
Pre-boot Time(ms)
|
|
ADSP-21569
|
2.1
|
|
ADSP-21593
|
2.049
|
|
ADSP-SC594
|
2.415
|
|
ADSP-SC598
|
2.294
|
The pre-boot execution time varies based on the features enabled through OTP programming (CGU configuration and DMC initialization) and processors.
For more details about pre-boot operation, please refer the respective Hardware reference manual (HRM).
Please refer the below application notes for more information about the "Boot Time Estimation".
ADSP-2156x:
EE-447 - Tips and Tricks Using the ADSP-SC59x/ADSP-2159x/ADSP-2156x Processor Boot ROM
https://www.analog.com/media/en/technical-documentation/application-notes/ee447v01.pdf
ADSP-SC59x/ADSP-2159x:
EE-432 - Boot Time Estimation for ADSP-SC59x/ADSP-2159x SHARC+ Processors
https://www.analog.com/media/en/technical-documentation/application-notes/ee432.pdf
ADSP-SC598:
EE-438 - Boot Time Estimation for ADSP-SC598 SHARC+® Processors
https://www.analog.com/media/en/technical-documentation/application-notes/ee438v01.pdf