Set Max Address (F9H); Figure 99 Set Max Address (F9H) - Hitachi HTS541616J9AT00 - Travelstar 160 GB Hard Drive Specifications

2.5 inch ata/ide hard disk drive
Hide thumbs Also See for HTS541616J9AT00 - Travelstar 160 GB Hard Drive:
Table of Contents

Advertisement

14.35 Set Max ADDRESS (F9h)

Command Block Output Registers
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

Figure 99 Set Max ADDRESS (F9h)

The Set Max ADDRESS command overwrites the max LBA/CYL of HDD in a range of actual device capacities.
The device receives this command, all accesses beyond that LBA/CYL are rejected with setting ABORT bit in
status register. Identify device command and Identify device DMA command returns the LBA/CYL which is set via
this command as a default value.
This command implement SET MAX security extension commands as subcommands. But regardless of Feature
register value, the case this command is immediately preceded by a Read Native Max ADDRESS command, it is
interpreted as a Set Max ADDRESS command.
The Read Native Max ADDRESS command should be issued and completed immediately prior to issuing Set Max
ADDRESS command. Otherwise this command is interpreted as a Set Max security extension command which is
destinated by feature register. If Set Max security mode is in the Locked or Frozen, the Set Max ADDRESS
command is aborted.
For more information, see "12.9.2 Set Max security extension commands" on page 78.
In CHS mode, LBA High, LBA Mid specify the max cylinder number. The Head number of Device and LBA Low
are ignored. The default value(See default CHS in Identify device information) is used for that.
In LBA mode, the Head number of Device, LBA High, LBA Mid and LBA Low specify the max LBA. This
command sets this LBA as the max LBA of the device.
After a successful command completion, Identify Device response words (61:60) shall reflect the maximum address
set with this command.
If the 48-bit Address feature set is supported, the value placed in Identify Device response words (103:100) shall be
the same as the value placed in words (61:60). However, if the device contains greater than 268,435,455 sectors, the
capacity addressable with 28-bit commands, and the address requested is 268,435,455, the max address shall be
changed to the native maximum address, the value placed in words (61:60) shall be 268,435,455 and the value
placed in words (103:100) shall be the native maximum address.
If a host protected area has been established by a Set Max Address Ext command, the device shall return command
aborted.
Output Parameters To The Device
Feature
B
Travelstar 5K160 (PATA) Hard Disk Drive Specification
7 6 5 4 3 2 1 0
- - - - - - - -
V V V V V V V V
- - - - - - - B
V V V V V V V V
V V V V V V V V
V V V V V V V V
- L - D H H H H
1 1 1 1 1 0 0 1
3
2
1
0
0
ABT T0N
AM
N
0
V
0
0
Destination code for this command
SET MAX SET PASSWORD
01h
SET MAX LOCK
02h
03h
SET MAX UNLOCK
04h
SET MAX FREEZE LOCK
When the Set Max ADDRESS command is executed, this register is
ignored.
Option bit for selection whether nonvolatile or volatile. B=0 is volatile
condition. When B=1, MAX LBA/CYL which is set by Set Max
ADDRESS command is preserved by POR and HARD RESET. When
146 / 188
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
-
V

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents