14.7
Format Unit (F7h: Vendor Specific)
Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7
8
9
10
CRC UNC
0
IDN
0
0
0
V
Figure 50 Format Unit Command (F7h)
The Format Unit command initializes all user data sectors after merging reassigned sector location into the defect
information of the device and clearing the reassign information. Both new reassign information and new defect
information are available right after this command completion, and are also used on next power on reset or hard
reset. Both previous information are erased from the device by this command.
Note that the Format Unit command initializes from LBA 0 to Native MAX LBA. Host MAX LBA set by Initialize
Drive Parameter or Set MAX ADDRESS command is ignored. So the protected area by Set MAX ADDRESS
commands is also initialized.
The security erase prepare command should be completed immediately prior to the Format Unit command. If the
device receives a Format Unit command without a prior Security Erase Prepare command the device aborts the
Format Unit command.
If Feature register is NOT 11h, the device returns Abort error to the host.
This command does not request to data transfer.
Output Parameters To The Device
Feature
Destination code for this command
11H Merge reassigned location into the defect information
The execution time of this command is shown below.
HTS541616J9AT00
HTS541612J9AT00
HTS541610J9AT00
HTS541680J9AT00
HTS541660J9AT00
HTS541640J9AT00
Travelstar 5K160 (PATA) Hard Disk Drive Specification
7 6 5 4 3 2 1 0
- - - - - - - -
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - D - - - -
1 1 1 1 0 1 1 1
3
2
1
0
0
ABT T0N
AM
N
0
V
0
0
102 / 188
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
Status Register
7
6
5
4
BSY RDY
DF
DSC DRQ COR IDX ERR
0
V
0
V
7 6 5 4 3 2 1 0
- - - - - - - -
...See Below...
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
...See Below...
3
2
1
0
-
0
-
V
81 min
71 min
61 min
42 min
37 min
22 min