NRFS=B_0x0, DS1=B_0x0, DS2=B_0x0, MODE=B_0x0
SDRAM command mode register
| MODE | Command mode 0 (B_0x0): Normal mode command (NRM) 2 (B_0x2): Precharge all banks command (PALL) 3 (B_0x3): Refresh command (REF) 4 (B_0x4): Load mode register command (LMR) 5 (B_0x5): Self-refresh command (SR) 6 (B_0x6): Power-down command (PD) |
| DS2 | Command targeting SDRAM device 2 0 (B_0x0): Command not issued to SDRAM device 2 1 (B_0x1): Command issued to SDRAM device 2 |
| DS1 | Command targeting SDRAM device 1 0 (B_0x0): Command not issued to SDRAM device 1 1 (B_0x1): Command issued to SDRAM device 1 |
| NRFS | Number of Refresh commands 0 (B_0x0): 1 Refresh cycle 1 (B_0x1): 2 Refresh cycles 14 (B_0xE): 15 Refresh cycles 15 (B_0xF): 16 Refresh cycles |
| MRD | Mode register definition |