228
Western Digital Hard Disk Drive OEM Specification
11.37.3
Sanitize Freeze Lock Ext Command (feature: 0020h)
Com m and Block Output Registers
Com m and Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data Low
-
-
-
-
-
-
-
-
Data Low
-
-
-
-
-
-
-
-
Data High
-
-
-
-
-
-
-
-
Data High
-
-
-
-
-
-
-
-
Feature
Current
0
0
1
0
0
0
0
0
Error
...See Below ...
Previous
0
0
0
0
0
0
0
0
Sector Count
Current
-
-
-
-
-
-
-
-
Sector Count
HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
-
HOB=1
V
V
V
-
-
-
-
-
Sector Number
Current
0
1
1
0
1
0
1
1
Sector Number
HOB=0
V
V
V
V
V
V
V
V
Previous
0
1
0
0
0
1
1
0
HOB=1
-
-
-
-
-
-
-
-
Cylinder Low
Current
0
1
0
0
1
1
0
0
Cylinder Low
HOB=0
V
V
V
V
V
V
V
V
Previous
-
-
-
-
-
-
-
-
HOB=1
-
-
-
-
-
-
-
-
Cylinder High
Current
0
1
1
1
0
0
1
0
Cylinder High
HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
-
HOB=1
-
-
-
-
-
-
-
-
Device/Head
1
1
1
D
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
1
0
1
1
0
1
0
1
Status
...See Below ...
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC
UNC
0
IDN
0
ABT
T0N
AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
V
Vs
0
V
0
V
0
0
0
V
0
V
-
0
-
V
Table 198 Sanitize Freeze Lock Ext Command (B4h/0020h)
The SANITIZE FREEZE LOCK EXT command sets the Sanitize Device state machine to the SD1: Sanitize Frozen
state. After command completion all sanitize commands other than SANITIZE STATUS EXT command returns
command aborted. The Sanitize Device state machine transitions from the SD1: Sanitize Frozen state to the SD0:
Sanitize Idle state after a power-on reset or hardware reset.
Input Parameters From The Device
Sector Count Current bit 15
Sanitize Operation Completed Without Error.
1:
the Sanitize Device state machine enters SD4: Sanitize Operation
Succeeded.
0:
the Sanitize Device state machine enters SD2: Sanitize Operation. The
value of this bit is maintained across power-on resets.
Sector Count Current bit 14
Sanitize operation in progress
Sector Count Current bit 13
Device is in the SD1: Sanitize Frozen state
Cylinder Low (HOB=0)
The Sanitize Progress Indication (15:8).
Progress indicator for the current sanitizes operation when the Sanitize Device
state machine is in the SD2: Sanitize Operation state. This value is FFFFh if the
Sanitize Device state machine is not in the
SD2: Sanitize Operation state (i.e., a sanitize operation is not in process). The
returned value is a numerator that has 65536 (10000h) as its denominator.
Sector Number (HOB=0)
The Sanitize Progress Indication (7:0). Ditto.
