Read Native Max Address (F8H); Table 85 Read Native Max Address Command (F8H) - Hitachi HTS542516K9SA00 Specifications

14.19

Read Native Max Address (F8h)

Block Output Registers Command
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7 6 5 4
CRC UNC 0 IDN
0 0 0 0

Table 85 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
D
-
Input Parameters From The Device
LBA Low
LBA High/Mid
H
V
-
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- L - - - - - -
1 1 1 1 1 0 0 0
3 2 1 0
0 ABT T0N AM
N
0 V 0 0
LBA mode.Indicates the addressing mode.L=0 specifies CHS mode and L=1 does LBA
addressing mode.
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.
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)
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)
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)
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.
Page 114 of 171
5K250 (SATA) OEM Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
Status Register
7 6 5 4
BSY RDY DF DSC DRQ COR IDX ERR
0 V 0 -
7 6 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 V V V V V V
- - - - H H H H
...See Below...
3 2 1 0
- 0 0 V