SDERR=value1, SDRMBUSY=value1, REFERR=value1
EBU SDRAM Status Register
| REFERR | SDRAM Refresh Error 0 (value1): No refresh error. 1 (value2): Refresh error occurred. |
| SDRMBUSY | SDRAM Busy 0 (value1): Power-up initialization sequence is not running 1 (value2): Power-up initialization sequence is running |
| SDERR | SDRAM read error 0 (value1): Reads running successfully 1 (value2): Read error condition has been detected |