35.6.1 PMECC Configuration Register
| Name: | PMECC_CFG |
| Offset: | 0x000 |
| Reset: | 0x00000000 |
| Property: | Read/Write |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| AUTO | SPAREEN | ||||||||
| Access | R/W | R/W | |||||||
| Reset | 0 | 0 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| NANDWR | PAGESIZE[1:0] | ||||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 0 | 0 | ||||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| SECTORSZ | BCH_ERR[2:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 | |||||
Bit 20 – AUTO Automatic Mode Enable
This bit is only relevant in NAND Read Mode, when spare enable is activated.
| Value | Description |
|---|---|
| 0 | Indicates that the spare area is not protected. In that case the ECC computation takes into account the ECC area located in the spare area. (within the start address and the end address). |
| 1 | Indicates that the spare is error protected. In this case, the ECC computation takes into account the whole spare area minus the ECC area in the ECC computation operation. |
Bit 16 – SPAREEN Spare Enable
- For NAND write access:
— 0: The spare area is skipped
— 1: The spare area is protected with the last sector of data.
- For NAND read access:
— 0: The spare area is skipped.
— 1: The spare area contains protected data or only redundancy information.
Bit 12 – NANDWR NAND Write Access
| Value | Description |
|---|---|
| 0 | NAND read access |
| 1 | NAND write access |
Bits 9:8 – PAGESIZE[1:0] Number of Sectors in the Page
| Value | Name | Description |
|---|---|---|
| 0 | PAGESIZE_1SEC | 1 sector for main area (512 or 1024 bytes) |
| 1 | PAGESIZE_2SEC | 2 sectors for main area (1024 or 2048 bytes) |
| 2 | PAGESIZE_4SEC | 4 sectors for main area (2048 or 4096 bytes) |
| 3 | PAGESIZE_8SEC | 8 errors for main area (4096 or 8192 bytes) |
Bit 4 – SECTORSZ Sector Size
| Value | Description |
|---|---|
| 0 | The ECC computation is based on a sector of 512 bytes. |
| 1 | The ECC computation is based on a sector of 1024 bytes. |
Bits 2:0 – BCH_ERR[2:0] Error Correct Capability
| Value | Name | Description |
|---|---|---|
| 0 | BCH_ERR2 | 2 errors |
| 1 | BCH_ERR4 | 4 errors |
| 2 | BCH_ERR8 | 8 errors |
| 3 | BCH_ERR12 | 12 errors |
| 4 | BCH_ERR24 | 24 errors |