Terminal CNH1
Pins Status Function
1-2 SHORT* Select drive as MASTER
OPEN Select drive as SLAVE
3-4 OPEN RESERVED (do not short)
5-6 SHORT* Auto idle control disabled
OPEN Auto idle control enabled
7-8 SHORT CSEL connected to interface
OPEN* CSEL not connected to interface
9-10 OPEN RESERVED
CSEL provides for an alternative method for selection of the MASTER and SLAVE configurations. A special cable is needed to implement this feature and should only be used if supported by BOTH drives.