Hitachi HTS543280L9SA00 14.27Security Disable Password F6h, Security Disable Password Command F6h

5K320 SATA OEM Specification

14.27Security Disable Password (F6h)

Command Block Output Registers

Register	7	6	5	4	3	2	1	0
Data	-	-	-	-	-	-	-	-
Feature	-	-	-	-	-	-	-	-
Sector Count	-	-	-	-	-	-	-	-
LBA Low	-	-	-	-	-	-	-	-
LBA Mid	-	-	-	-	-	-	-	-
LBA High	-	-	-	-	-	-	-	-
Device	-	-	-	-	-	-	-	-
Command	1	1	1	1	0	1	1	0

Command Block Input Registers

Register	7	6	5	4	3	2	1	0
Data	-	-	-	-	-	-	-	-
Error			...See Below...
Sector Count	-	-	-	-	-	-	-	-
LBA Low	-	-	-	-	-	-	-	-
LBA Mid	-	-	-	-	-	-	-	-
LBA High	-	-	-	-	-	-	-	-
Device	-	-	-	-	-	-	-	-
Status			...See Below...

Error Register

7	6	5	4	3	2	1	0
CRC	UNC	0	IDN	0	ABT	T0N	AM
							N
0	0	0	0	0	V	0	0

Status Register

7	6	5	4	3	2	1	0
BSY	RDY	DF	DSC	DRQ	COR	IDX	ERR
0	V	0	V	-	0	0	V

Table 93 Security Disable Password Command (F6h)

The Security Disable Password command disables the security mode feature ( device lock function).

The Security Disable Password command requests a transfer of a single sector of data from the host including information specified in the following table. Then the device checks the transferred password. If the User Password or Master Password matches the given password, the device disables the security mode feature (device lock function). This command does not change the Master Password which may be re-activated later by setting User Password. This command should be executed in device unlock mode.

Word	Description
00	Control word
	bit 0	: Identifier (1-Mater, 0-User)
	bit 1-15	: Reserved
01-16	Password	(32 bytes)
17-255	Reserved

Table 94 Password Information for Security Disable Password command

The device will compare the password sent from this host with that specified in the control word.

Identifier Zero indicates that the device should check the supplied password against the user password stored internally. One indicates that the device should check the given password against the master password stored internally.

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