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

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.

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.

Host

RegHD

Device

RegDH

Figure 5.13 Non-data command protocol

C141-E249

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