SPRUIU1D July 2020 – December 2024 DRA821U , DRA821U-Q1
Table 4-62 shows the boot parameter table for USB boot. Must be preceded with the common boot parameters described in Table 4-51.
| Byte Offset | Size (bytes) | Name | Default Value | Description |
|---|---|---|---|---|
| 256 | 4 | Port | From pins | Physical port number. Always set to 0. |
| 260 | 4 | Reseved | 0 | Reseved |
| 264 | 4 | Base address 0 | From pins (port) | Base address of USB subsystem (CMN) |
| 268 | 4 | Base address 1 | From pins (port) | Base address of controller |
| 272 | 4 | phyBaseAddress | From pins (port) | Base address of USB PHY module |
| 276 | 4 | modRefClkkHz | varies | Module reference clock, in kHz |
| 280 | 4 | Vendor ID | 0x0451 | USB vendor ID. Read from control registers. |
| 284 | 4 | Product ID | 0x6163 | USB product ID. Read from control registers. |
| 288 | 4 | String Table addr | 0x4182BCA8 | Pointer to the string table in RAM |
| 292 | 2 | Vendor String offset | 0 | Offset to vendor string in string table |
| 298 | 2 | Prod string offset | 32 | Offset to product string in string table |
| 300 | 2 | Serial num string offset | 64 | Offset to serial number string in string table |
| 302 | 2 | Timeout | 5000 | USB timeout in milliseconds |
| 304 | 2 | Mode | 1 | 1 = DFU ≠1 = Reserved |
| 305 | 1 | Lane reverse | 0 | Host mode only. Boot file name in Unicode characters |
| 306 | 2 | Reseved | 0 | Reseved |
| 308 | 4 | Block size | 4096 | DFU block size |