SDRAM Control Register 1
| NC | Number of column address bits |
| NR | Number of row address bits |
| MWID | Memory data bus width |
| NB | Number of internal banks |
| CAS | CAS latency |
| WP | Write protection |
| SDCLK | SDRAM clock configuration |
| RBURST | Burst read |
| RPIPE | Read pipe |