| 5K320 SATA OEM Specification |
DRDY (RDY) | Device Ready. RDY=1 indicates that the device is capable of responding to a command. |
DF | RDY will be set to 0 during power on until the device is ready to accept a command. |
Device Fault. DF=1 indicates that the device has detected a write fault condition. DF is set to | |
DSC | 0 after the Status Register is read by the host. |
Device Seek Complete. DSC=1 indicates that a seek has completed and the device head is | |
| settled over a track. DSC is set to 0 by the device just before a seek begins. When an error |
| occurs, this bit is not changed until the Status Register is read by the host, at which time the |
| bit again indicates the current seek complete status. |
| When the device enters into or is in Standby mode or Sleep mode, this bit is set by device in |
DRQ | spite of not spinning up. |
Data Request. DRQ=1 indicates that the device is ready to transfer a word or byte of data | |
| between the host and the device. The host should not write the Command register when |
CORR (COR) | DRQ=1. |
Corrected Data. Always 0. | |
IDX | Index. Always 0 |
ERR | ERR=1 indicates that an error occurred during execution of the previous command. The |
| Error Register should be read to determine the error type. The device sets ERR=0 when the |
| next command is received from the host. |
- 50 -
