Hitachi HDS725050KLA360 Specifications page 124
3.5 inch ultra ata/133 hard disk drive, 3.5 inch serial ata hard disk drive
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Also See for HDS725050KLA360:
- Install manual (2 pages) ,
- Specifications (191 pages) ,
- Datasheet (2 pages)
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Output registers
0
This indicates that the bit must be set to 0.
1
This indicates that the bit must be set to 1.
The device number bit. Indicates that the device number bit of the Device/Head Register should be specified.
D
Zero selects the master device and one selects the slave device.
Head number. This indicates that the head number part of the Device/Head Register is an output parameter and
H
should be specified.
LBA mode. This indicates the addressing mode. Zero specifies CHS mode and one specifies LBA addressing
L
mode.
Retry. Original meaning is already obsolete, there is no difference between 0 and 1. (Using 0 is recommended for
R
future compatibility.)
Option Bit. This indicates that the Option Bit of the Sector Count Register be specified. (This bit is used by Set
B
Max ADDRESS command.)
V
Valid. This indicates that the bit is part of an output parameter and should be specified.
x
This indicates that the hex character is not used.
-
This indicates that the bit is not used.
Input registers
0
This indicates that the bit is always set to 0.
1
This indicates that the bit is always set to 1.
Head number. This indicates that the head number part of the Device/Head Register is an input parameter and
H
will be set by the device.
V
Valid. This indicates that the bit is part of an input parameter and will be set by the device to 0 or 1.
Not recommended condition for start up. Indicates that the condition of the device is not recommended for start
N
up.
-
This indicates that the bit is not part of an input parameter. Symbols are used in the command descriptions:
The command descriptions show the contents of the Status and Error Registers after the device has completed pro-
cessing the command and has interrupted the host.
The following symbols are used in the command descriptions.
Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
110
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