SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
Device Size Configuration Register
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| Instance Name | Physical Address |
|---|---|
| FSS0 | 0FC4 0014h |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| DEV_SIZE_RESV_FLD | MEM_SIZE_ON_CS3_FLD | MEM_SIZE_ON_CS2_FLD | MEM_SIZE_ON_CS1_FLD | ||||
| R | R/W | R/W | R/W | ||||
| 0h | 0h | 0h | 0h | ||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| MEM_SIZE_ON_CS1_FLD | MEM_SIZE_ON_CS0_FLD | BYTES_PER_SUBSECTOR_FLD | |||||
| R/W | R/W | R/W | |||||
| 0h | 0h | 10h | |||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| BYTES_PER_DEVICE_PAGE_FLD | |||||||
| R/W | |||||||
| 100h | |||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| BYTES_PER_DEVICE_PAGE_FLD | NUM_ADDR_BYTES_FLD | ||||||
| R/W | R/W | ||||||
| 100h | 2h | ||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:29 | DEV_SIZE_RESV_FLD | R | 0h | Reserved |
| 28:27 | MEM_SIZE_ON_CS3_FLD | R/W | 0h | Size of Flash Device connected to CS[3] pin: Value=00 : size of 512Mb. Value=01 : size of 1Gb. Value=10 : size of 2Gb. Value=11 : size of 4Gb. |
| 26:25 | MEM_SIZE_ON_CS2_FLD | R/W | 0h | Size of Flash Device connected to CS[2] pin: Value=00 : size of 512Mb. Value=01 : size of 1Gb. Value=10 : size of 2Gb. Value=11 : size of 4Gb. |
| 24:23 | MEM_SIZE_ON_CS1_FLD | R/W | 0h | Size of Flash Device connected to CS[1] pin: Value=00 : size of 512Mb. Value=01 : size of 1Gb. Value=10 : size of 2Gb. Value=11 : size of 4Gb. |
| 22:21 | MEM_SIZE_ON_CS0_FLD | R/W | 0h | Size of Flash Device connected to CS[0] pin: Value=00 : size of 512Mb. Value=01 : size of 1Gb. Value=10 : size of 2Gb. Value=11 : size of 4Gb. |
| 20:16 | BYTES_PER_SUBSECTOR_FLD | R/W | 10h | Number of bytes per Block. This is required by the controller for performing the write protection logic. The number of bytes per block must be a power of 2 number. |
| 15:4 | BYTES_PER_DEVICE_PAGE_FLD | R/W | 100h | Number of bytes per device page. This is required by the controller for performing FLASH writes up to and across page boundaries. |
| 3:0 | NUM_ADDR_BYTES_FLD | R/W | 2h | Number of address bytes. A value of 0 indicates 1 byte. |