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5.4 Command Protocol
• READ NATIVE MAX ADDRESS (EXT)
• IDLE
• IDLE (UNLOAD) IMMEDIATE
• STANDBY
• STANDBY IMMEDIATE
• CHECK POWER MODE
• SMART DISABLE OPERATION
• SMART ENABLE/DISABLE AUTOSAVE
• SMART ENABLE OPERATION
• SMART EXECUTE OFFLINE IMMEDIATE
3) Command execution is completed.
• SMART RETURN STATUS
• SECURITY ERASE PREPARE
• SECURITY FREEZE LOCK
• FLUSH CACHE (EXT)
• SLEEP
• DEVICE CONFIGRATION RESTORE (FREEZE LOCK)
The following is the protocol for command execution without data transfer:
1) The device receives a non-data command with the RegHD FIS.
2) The device executes the received command.
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-E249 5-171