Power On Reset (POR)
COMRESET
Soft Reset (Software Reset)

Travelstar 5K160 (SATA) Hard Disk Drive Specification

12 General Operation Descriptions

12.1 Reset Response

There are three types of reset in ATA as follows:

The device executes a series of electrical circuitry diagnostics, spins up the HDA, tests speed and other mechanical parametric, and sets default values. COMRESET is issued in Serial ATA bus.

The device resets the interface circuitry as well as Soft Reset. SRST bit in the Device Control Register is set, then is reset.

The device resets the interface circuitry according to the Set Features requirement.

The actions of each reset are shown in “Reset Response Table” on Page 5

 

 

POR

 

 

 

Aborting Host interface

 

-

Aborting Device operation

-

Initialization of hardware

 

O

Internal diagnostic

 

O

Starting spindle motor

(*5)

Initialization of registers (*2)

 

O

Reverting programmed parameters to default

 

O

- Number of CHS (set by Initialize Device Parameter)

 

 

- Multiple mode

 

 

- Write cache

 

 

- Read look-ahead

 

 

- ECC bytes

 

 

- Volatile max address

 

 

Power mode

(*5)

Reset Standby timer value

 

o

 

 

 

O ---- execute

X ---- not execute

COMRESET

o

(*1)

x x x o (*6)

(*4)

o

Soft Reset

o

(*1)

x

x

x

o

(*3)

(*4)

x

Note.

(*1) Execute after the data in write cache has been written.

(*2) Default value on POR is shown in “Default Register Values” on Page 5.

(*3) The Set Features command with Feature register = CCh enables the device to revert these parameters to the power on defaults.

(*4) In the case of sleep mode, the device goes to standby mode. In other case, the device does not change current mode.

(*5) According to the initial power mode selection.

(*6) See 5.15 Software Setting Preservation feature.

Figure 5 Reset Response Table

12.1.1Register Initialization

After power on, COMRESET, or software reset, the register values are initialized as shown in the following table.

Register

Default Value

Error

Diagnostic Code

Sector Count

01h

LBA Low

01h

LBA Mid

00h

LBA High

00h

Device

00h

Status

50h

 

48/167

Page 47 Page 49
Page 48
Image 48
Hitachi HTS541660J9SA00, HTS541640J9SA00 manual General Operation Descriptions, Reset Response, Register Initialization
Page 47 Page 49

HTS541640J9SA00, HTS541616J9SA00, HTS541680J9SA00, HTS541612J9SA00, HTS541660J9SA00 specifications

The Hitachi HTS541660J9SA00, HTS541640J9SA00, HTS541616J9SA00, HTS541680J9SA00, and HTS541612J9SA00 are a series of hard disk drives that showcase Hitachi's commitment to high-performance storage solutions. These drives belong to the Travelstar series, which is designed primarily for mobile computing applications, such as laptops and external storage devices. Their compact design and reliable performance make them suitable for users seeking efficient storage in portable settings.

One of the primary features of these drives is their SATA interface, which allows for fast data transfer rates, thereby enhancing overall system performance. The SATA II interface provides a maximum transfer rate of up to 3.0 Gbps, ensuring that these drives can keep up with the demands of modern computing.

The storage capacity of these models varies, with options such as 160GB, 250GB, and 320GB, catering to diverse user needs for both personal and professional use. The HTS541660J9SA00 provides a generous 160GB capacity, while the HTS541680J9SA00 offers up to 320GB, making them suitable for users who require significant storage space for media files, applications, and documents.

In terms of performance, these hard drives boast a rotational speed of 5400 RPM, striking an optimal balance between speed and energy efficiency. This speed ensures relatively quick access times while consuming less power compared to faster 7200 RPM drives, making them ideal for battery-powered devices.

Another significant characteristic of these drives is the use of Hitachi’s Advanced Format technology. This technology increases the physical sector size of the drives to 4KB, enhancing error correction and overall data integrity. This larger sector size allows for greater data efficiency, significantly reducing the overhead associated with data storage.

Furthermore, these drives are designed with Shock Protection technology, which helps to safeguard the drive's internal components from physical shocks caused by accidental drops or bumps. This feature is especially important for mobile storage solutions, where portability can lead to unintentional impacts.

In conclusion, the Hitachi HTS541660J9SA00, HTS541640J9SA00, HTS541616J9SA00, HTS541680J9SA00, and HTS541612J9SA00 hard disk drives are exemplary choices for anyone seeking reliable, efficient, and portable storage solutions. With their combination of adequate capacity, enhanced data management technologies, and robust design, these drives effectively meet the demands of today’s mobile computing needs.
Top Page Image Contents