SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Table 15-82 list the local address to SDRAM address mapping when IBANK_POS = 0 and EBANK_POS = 1.
| MAddr[31:N] N = 1 if 16-bit data bus width; N = 2 if 32-bit data bus width | |||||||
|---|---|---|---|---|---|---|---|
| chip select | row address | bank address | column address | ||||
| EBANK value | chip select width (bits) | ROWSIZE value | row width (bits) | IBANK value | bank width (bits) | PAGESIZE value | col width (bits) |
| 0 | 0 | 0 | 9 | 0 | 0 | 0 | 8 |
| 1 | 1 | 1 | 10 | 1 | 1 | 1 | 9 |
| 2 | 11 | 2 | 2 | 2 | 10 | ||
| 3 | 12 | 3 | 3 | 3 | 11 | ||
| 4 | 13 | ||||||
| 5 | 14 | ||||||
| 6 | 15 | ||||||
| 7 | 16 | ||||||
For EMIF_SDRAM_CONFIG[28:27] IBANK_POS = 0, and EMIF_SDRAM_CONFIG_2[27] EBANK_POS = 1, the EMIF interleaves among all the banks within a device (per CS) but cannot interleave banks between the two CSs. Thus, the EMIF can keep a maximum of 16 banks (8 internal banks across two CSs) open at a time but can interleave among only 8 of them.