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12.53 Set Sector Configuration Ext (B2h)
The Set Sector Configuration Ext command sets the device logical block length and number of logical sectors per
physical sector.
The successful processing of a SET SECTOR CONFIGURATION command results in the device setting the
ACCESSIBLE CAPACITY field (see Table 161) to the new native max address.
NOTE: No block sizes should be supported other than 512 bytes and 4096 bytes.
NOTE: Invalid customer formats are not supported, the command is aborted in this case.
Table 221 Set Sector Configuration Ext Commands (B2h)
Command Block Output Registers
Command 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
V
V
V
V
V
V
V
V
Error
…See Below…
Previous
V
V
V
V
V
V
V
V
Sector Count
Current
-
-
-
-
-
V
V
V
Sector Count
HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
V
HOB=1
-
-
-
-
-
-
-
-
Sector Number Current
-
-
-
-
-
-
-
V
Sector Number HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
-
HOB=1
-
-
-
-
-
-
-
-
Cylinder Low
Current
-
-
-
-
-
-
-
V
Cylinder Low
HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
V
HOB=1
-
-
-
-
-
-
-
-
Cylinder High
Current
-
-
-
-
-
-
-
-
Cylinder High
HOB=0
-
-
-
-
-
-
-
-
Previous
-
-
-
-
-
-
-
-
HOB=1
-
-
-
-
-
-
-
-
Device/Head
-
1
-
D
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
1
0
1
1
0
0
1
0
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
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V
Output Parameters To The Device
Feature
The value in the Command Check field is taken from the Descriptor Check field (see Section
12.21.16.4) in the descriptor specified by the Sector Configuration Descriptor Index field.
The value in the Descriptor Check field shall not be equal to the value in the Descriptor Check field
in any other valid Sector Configuration Descriptor in this device.
Sector Count
bit
Description
15-3
Reserved
2-0
Sector Configuration Descriptor Index field
300
Hard Disk Drive Specification