Command name

Command code (in hex)

 

 

 

 

Security Erase Unit

F4H

 

Security Freeze

F5H

 

Security Set Password

F1H

 

Security Unlock

F2H

 

Seek

70H

 

Set Features

EFH

 

Set Max Address

F9H

 

Note: Individual Set Max Address

Address:

00H

commands are identified by the value

Password:

01H

placed in the Set Max Features regis-

Lock:

02H

ter as defined to the right.

Unlock:

03H

 

Freeze Lock:

04H

Set Max Address Extended

37H

 

Set Multiple Mode

C6H

 

 

 

 

Sleep

99H or E6H

 

S.M.A.R.T. Disable Operations

B0H / D9H

 

S.M.A.R.T. Enable/Disable Autosave

B0H / D2H

 

S.M.A.R.T. Enable Operations

B0H / D8H

 

S.M.A.R.T. Execute Offline

B0H / D4H

 

S.M.A.R.T. Read Attribute Thresholds

B0H / D1H

 

S.M.A.R.T. Read Data

B0H / D0H

 

S.M.A.R.T. Read Log Sector

B0H / D5H

 

S.M.A.R.T. Return Status

B0H / DAH

 

S.M.A.R.T. Save Attribute Values

B0H / D3H

 

S.M.A.R.T. Write Log Sector

B0H / D6H

 

Standby

96H or E2H

 

Standby Immediate

94H or E0H

 

Write Buffer

E8H

 

Write DMA

CAH

 

Write DMA Extended

35H

 

Write DMA Without Retries

CBH

 

Write Log Extended

3FH

 

Write Multiple

C5H

 

Write Multiple Extended

39H

 

Write Sectors

30H

 

Write Sectors Without Retries

31H

 

Write Sectors Extended

34H

 

Barracuda 7200.8 PATA Product Manual, Rev. F

29

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Seagate ST3400632A, 7200.8 PATA, ST3250623A, ST3300631A manual F4H