Hitachi HDT725025VLA380 Specifications - Page 198

Read Native Max Address Ext 27h

Page 198 highlights

12.22 Read Native Max Address Ext (27h) Table 111: Read Native Max Address Ext command (27h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Current Feature Previous Sector Count Current Previous Sector Number Current Previous Cylinder Current Low Previous Cylinder Current High Previous Device/Head 1 1 1 D - - - - Command 0 0 1 0 0 1 1 1 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Error see below Sector Count HOB=0 HOB=1 Sector Number HOB=0 HOB=1 Cylinder HOB=0 Low HOB=1 Cylinder HOB=0 High HOB=1 Device/Head Status V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V See below ... 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0- - 0 - V 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) LBA (7:0) of the address of the Native max address Sector Number (HOB=1) LBA (31:24) of the address of the Native max address Cylinder Low (HOB=0) LBA (15:8) of the address of the Native max address Cylinder Low (HOB=1) LBA (39:32) of the address of the Native max address Cylinder High (HOB=0) LBA (23:16) of the address of the Native max address Cylinder High (HOB=1) LBA (47:40) of the address of the Native max address Deskstar T7K500 Hard Disk Drive Specification 184

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Deskstar T7K500 Hard Disk Drive Specification
184
12.22
Read Native Max Address Ext (27h)
Table 111: Read Native Max Address Ext command (27h)
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)
LBA (7:0) of the address of the Native max address
Sector Number (HOB=1)
LBA (31:24) of the address of the Native max address
Cylinder Low (HOB=0)
LBA (15:8) of the address of the Native max address
Cylinder Low (HOB=1)
LBA (39:32) of the address of the Native max address
Cylinder High (HOB=0)
LBA (23:16) of the address of the Native max address
Cylinder High (HOB=1)
LBA (47:40) of the address of the Native max address
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
- - - - - - - -
Error
see below
Previous
- - - - - - - -
Sector
Count
Current
- - - - - - - -
Sector
Count
HOB=0
- - - - - - - -
Previous
- - - - - - - -
HOB=1
- - - - - - - -
Sector
Number
Current
- - - - - - - -
Sector
Number
HOB=0
V V V V V V V V
Previous
- - - - - - - -
HOB=1
V V V V V V V V
Cylinder
Low
Current
- - - - - - - -
Cylinder
Low
HOB=0
V V V V V V V V
Previous
- - - - - - - -
HOB=1
V V V V V V V V
Cylinder
High
Current
- - - - - - - -
Cylinder
High
HOB=0
V V V V V V V V
Previous
- - - - - - - -
HOB=1
V V V V V V V V
Device/Head
1 1 1 D - - - -
Device/Head
- - - - - - - -
Command
0 0 1 0 0 1 1 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
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V