SPRUIU1D July 2020 – December 2024 DRA821U , DRA821U-Q1
The configuration table for Hyperflash is shown in Table 4-65. Must be preceded with the common boot parameters described in Table 4-51.
| Byte Offset | Size (bytes) | Name | Default Value | Description |
|---|---|---|---|---|
| 256 | 1 | Port | 0 | Physical port |
| 257 | 1 | Mode | 0 | 0 = DDR, otherwise SDR |
| 258 | 1 | Csel | From pins | Chip select |
| 259 | 1 | nCsel | From pins | Number of valid chip selects |
| 260 | 4 | Rsvd | 0 | Reserved |
| 264 | 2 | RefFreqkHz | 0 | Module reference clock in kHz. 0 = ROM code computes the value |
| 266 | 2 | Rsvd | 0 | Reserved |
| 268 | 4 | busFreqkHz | From pins | Hyperflash bus frequency in kHz (83333 or 166666 kHz) |
| 272 | 4 | Base Address CS0 | 0 | Offset to CS0 memory |
| 276 | 4 | Base Address CS1 | 0 | Offset to CS1 memory |
| 280 | 4 | readIndex | 0 | Current active read offset (0 or 1) |
| 284 | 4 | Read offset 0 | 0x000000 | Read offset 0 |
| 288 | 4 | Read offset 1 | 0x400000 | Read offset 1 |
| 292 | 4 | Reserved | 0 | Reserved |
| 296 | 4 | Reserved | 0 | Reserved |