Текст страницы
Read Native Max Address Ext (27h)
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
-
-
-
-
-
-
-
-
Current
-
-
-
-
-
-
-
-
Feature
Error
…See Below…
Previous
-
-
-
-
-
-
-
-
Current
-
-
-
-
-
-
-
-
HOB=0
-
-
-
-
-
-
-
-
Sector Count
Sector Count
Previous
-
-
-
-
-
-
-
-
HOB=1
-
-
-
-
-
-
-
-
Current
-
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
Sector Number
Sector Number
Previous
-
-
-
-
-
-
-
-
HOB=1
V
V
V
V
V
V
V
V
Current
-
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
Cylinder Low
Cylinder Low
Previous
-
-
-
-
-
-
-
-
HOB=1
V
V
V
V
V
V
V
V
Current
-
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
Cylinder High
Cylinder High
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
Table 188 Read Native Max Address Ext (27h)
This command returns the native max LBA of HDD which is not affected 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.
227
Western Digital Ultrastar DC HC310 SATA Product Manual