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10.22 Read Native Max Address (F8h)
Block Output Registers Command
Register
7
Data
-
Feature
-
Sector Count
-
Sector Number
-
Cylinder Low
-
Cylinder High
-
Device/Head
1
Command
1
Error Register
7
6
5
CRC UNC
0
0
0
0
Table 131 Read Native Max ADDRESS (F8h)
This command returns the native max LBA/CYL of HDD which is not affected by Set Max Address command.
The 48-bit native max address is greater than 268,435,455; the Read Native Max Address command shall return
a value of 268,435,455.
Input Parameters From The Device
Sector Number
In LBA mode, this register contains native max LBA bits 0-7. (L=1)
In CHS mode, this register contains native max sector number. (L=0)
Cylinder High/Low
In LBA mode, this register contains native max LBA bits 8-15 (Low), 16-23 (High).
(L=1)
In CHS mode, this register contains native max cylinder number. (L=0)
H
In LBA mode, this register contains native max LBA bits 24-27. (L=1)
In CHS mode, this register contains native max head number.(L=0)
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
L
1
D
-
-
-
-
1
1
1
1
0
0
0
4
3
2
1
0
IDN
0
ABT T0N AMN
0
0
V
0
0
Command Block Input Registers
Register
7
6
Data
-
-
Error
Sector Count
-
-
Sector Number
V
V
Cylinder Low
V
V
Cylinder High
V
V
Device/Head
-
-
Status
Status Register
7
6
5
4
BSY RDY
DF
DSC DRQ COR IDX ERR
0
V
0
-
172
5
4
3
2
1
0
-
-
-
-
-
-
...See Below...
-
-
-
-
-
-
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
-
-
H
H
H
H
...See Below...
3
2
1
0
-
0
-
V
- Quick Links:
- Data Sheet
- Jumper Settings(Pata Model)
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