Table 110: Read Native Max Address Ext Command (27H); Read Native Max Address Ext (27H) - Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

12.22 Read Native Max Address Ext (27h)

Table 111: Read Native Max Address Ext command (27h)
Command Block Output Registers
Register
Data Low
Data High
Current
Feature
Previous
Current
Sector
Count
Previous
Current
Sector
Number
Previous
Current
Cylinder
Low
Previous
Cylinder Current
Previous
High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0
This command returns the native max LBA of HDD which is not effected by Set Max Address Ext command.
Input parameters from the device
Sector Number (HOB=0)
Sector Number (HOB=1)
Cylinder Low (HOB=0)
Cylinder Low (HOB=1)
Cylinder High (HOB=0)
Cylinder High (HOB=1)
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 1 1 D - - - -
0 0 1 0 0 1 1 1
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
LBA (7:0) of the address of the Native max address
LBA (31:24) of the address of the Native max address
LBA (15:8) of the address of the Native max address
LBA (39:32) of the address of the Native max address
LBA (23:16) of the address of the Native max address
LBA (47:40) of the address of the Native max address
Deskstar T7K500 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
Sector
Count
Sector
Number
Cylinder
Low
Cylinder
High
Device/Head
Status
0 7 6
BSY RDY DF DSC DRQ
0 0 V
184
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
HOB=0 - - - - - - - -
HOB=1 - - - - - - - -
HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
- - - - - - - -
See below ...
Status Register
5 4 3 2
COR IDX
0 - - 0
1 0
ERR
- V