The following table shows the OSPI commands sent by the BootROM firmware.
Note: The OSPI boot mode uses the single data
rate (SDR) mode of the flash memory interface.
| Boot Mode | Data Width | Read Command | Command Code | Dummy Cycles |
|---|---|---|---|---|
| OSPI | 1 | Read |
03h
|
- |
| OSPI | 1 | 4-byte read |
13h
|
- |
| OSPI | 8 | 4-byte octal output fast read |
7Ch
|
8 |