5K320 SATA OEM Specification
120
14.20 Read Native Max Address (F8h)
Block Output Registers Command
Command Block Input Registers
Register 7
6
5
4
3
2
1
0
Register 7
6
5
4
3
2
1
0
Data -
- -
-
-
-
-
-
Data -
-
-
-
-
-
-
-
Feature -
- -
-
-
-
-
-
Error ...See Below...
Sector Count -
- -
-
-
-
-
-
Sector Count -
-
-
-
-
-
-
-
LBA Low -
- -
-
-
-
-
-
LBA Low V
V
V
V
V
V
V
V
LBA Mid -
- -
-
-
-
-
-
LBA Mid V
V
V
V
V
V
V
V
LBA High -
- -
-
-
-
-
-
LBA High V
V
V
V
V
V
V
V
Device -
L
-
-
-
-
-
-
Device -
-
-
-
H
H
H
H
Command 1
1
1
1
1
0
0
0
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 AM
N
BSY
RDY
DF DSC
DRQ
COR
IDX
ERR
0 0 0 0 0 V 0 0
0 V 0 - - 0 0 V
Table 86 Read Native Max Address Command (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
return a value of 268,435,455.
Output Parameters To The Device
L LBA mode.Indicates the addressing mode.L=0 specifies CHS mode and L=1 does LBA
addressing mode.
D The device number bit. Indicates that the device number bit of the Device Register
should be specified. D=0 selects the master device and D=1 selects the slave device.
- Indicates that the bit is not used.
Input Parameters From The Device
LBA Low In LBA mode, this register contains native max LBA bits 0 - 7. (L=1)
In CHS mode, this register contains native max LBA Low. (L=0)
LBA High/Mid In LBA mode, this register contains native max LBA bits 8 - 15 (Mid), 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)
V Valid. Indicates that the bit is part of an input parameter and will be set to 0 or 1 by the
device.
- Indicates that the bit is not used.
