7K500 OEM Specification
Page 119 of 176
14.21
14.2114.21
14.21 Read Native Max A
Read Native Max ARead Native Max A
Read Native Max Address
ddressddress
ddress E
E E
Ext
xtxt
xt (27h)
(27h) (27h)
(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 -
-
-
-
-
-
-
-
Error ...See Below... Feature
Previous -
-
-
-
-
-
-
-
Current -
-
-
-
-
-
-
-
HOB=0
-
-
-
-
-
-
-
-
Sector Count
Previous -
-
-
-
-
-
-
-
Sector Count
HOB=1
-
-
-
-
-
-
-
-
Current -
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
LBA Low
Previous -
-
-
-
-
-
-
-
LBA Low
HOB=1
V
V
V
V
V
V
V
V
Current -
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
LBA Mid
Previous -
-
-
-
-
-
-
-
LBA Mid
HOB=1
V
V
V
V
V
V
V
V
Current -
-
-
-
-
-
-
-
HOB=0
V
V
V
V
V
V
V
V
LBA High
Previous -
-
-
-
-
-
-
-
LBA High
HOB=1
V
V
V
V
V
V
V
V
Device -
1
-
-
-
-
-
-
Device -
-
-
-
-
-
-
-
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 0 V
Table 87 Read Native Max Address Ext Command (29h)
This command returns the native max LBA of HDD which is not effected by Set Max Address Ext
command.
Input Parameters From The Device
LBA Low (HOB=0)
LBA (7:0) of the address of the Native max address.
LBA Low (HOB=1)
LBA (31:24)of the address of the Native max address.
LBA Mid (HOB=0)
LBA (15:8)of the address of the Native max address.
LBA Mid (HOB=1)
LBA (39:32)of the address of the Native max address.
LBA High (HOB=0)
LBA (23:16)of the address of the first Native max address.
LBA High (HOB=1)
LBA (47:40)of the address of the first Native max address.
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