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5.4 Command Protocol
• READ NATIVE MAX ADDRESS (EXT)
• IDLE
• IDLE (UNLOAD) IMMEDIATE
• STANDBY
• FLUSH CACHE (EXT)
The following is the protocol for command execution without data transfer:
• STANDBY IMMEDIATE
• CHECK POWER MODE
• SMART DISABLE OPERATION
• SMART ENABLE/DISABLE AUTOSAVE
• SMART ENABLE OPERATION
• SMART EXECUTE OFFLINE IMMEDIATE
• SMART RETURN STATUS
• SECURITY ERASE PREPARE
• SECURITY FREEZE LOCK
• SLEEP
• DEVICE CONFIGRATION RESTORE (FREEZE LOCK)
1) The device receives a non-data command with the RegHD FIS.
2) The device executes the received command.
3) Command execution is completed.
4) The device reports the completion of command execution by sending to the
host the RegDH FIS with 1 set in the I bit.
Device
Host
RegHD
RegDH
Figure 5.13 Non-data command protocol
C141-E245 5-171