Hitachi HDS723020BLA642 manual Timings, Timeout Values

Models: HDS723020BLA642

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7K200 SATA OEM Specification

15 Timings

The timing of BSY and DRQ in Status Register are shown in the following table. The other timings are described in Functional Specification part.

FUNCTION

INTERVAL

Power On and

Device Ready

After Power On

COMRESET

 

 

 

Software

Device Busy

Reset

After Software Reset

 

 

 

Device Ready

 

After Software Reset

 

 

COMRESET

Device Ready

 

After COMRESET

 

 

START

Power On and COMRESET

Device Control Register RST=1 and sends a Register FIS to the Device.

Device Control Register RST=0 and sends a Register FIS to the Device. After RST=1 and sends a Register FIS to the Device.

COMRESET Signal

Asserted

STOP

TIMEOUT

Status Register

31 sec

BSY=0 and RDY=1

 

and sends a Register

 

FIS to the host.

 

Status Register

400 ns

BSY=1

 

 

 

Status Register

31 sec

BSY=0 and RDY=1

 

and requests to send a

 

Register FIS to the host.

 

 

 

Status Register

31 sec

BSY=0 and RDY=1

 

and sends a Register

 

FIS to the Host.

 

Data In

Command

Device Busy

After a Register FIS to issue a command

PIO SETUP FIS for data-in transfer

Sets proper values in the registers and sends a Register

FIS

Status Register

BSY=1

Status Register

BSY=1

Status Register BSY=0 and DRQ=1 and sends a PIO SETUP FIS to the host.

400ns

30 sec

Data Out Command

Device Busy

After Data Transfer In

Device Busy

After a Register FIS to issue a command

Device Busy

After Data Transfer Out

PIO SETUP FIS for data-out transfer

A PIO SETUP FIS is

Status Register

transferred to the host.

BSY=1

Sets proper values in the

Status Register

registers and sends a Register

BSY=1

FIS

 

Sends a Data FIS to the device.

Status Register

 

BSY=1

Status Register

Status Register

BSY=1

BSY=0 and RDY=1

 

and sends a PIO

 

SETUP FIS to the host.

10us

400 ns

5 us

30sec (Note.1)

Non-Data Command

DMA Data

Transfer

Command

Device Busy

After a Register FIS to issue a command

A Register FIS to report Command Complete

Device Busy

After a Register FIS to issue a command

Sets proper values in the registers and sends a Register

FIS

Status Register BSY=1

Sets proper values in the registers and sends a Register

FIS

Status Register

BSY=1

Sets the status of the command to the Status Register and sends a Register FIS to the host

Status Register

BSY=1

400 ns

30sec (Note.2)

400 ns

Table 138 Timeout Values

Command category is referred to “13 Command Protocol” on page 70.

The abbreviations “ns”, “us”, “ms” and “sec” mean nanoseconds, microseconds, milliseconds and seconds, respectively.

We recommend that the host system executes Soft reset and then retry to issue the command if the host system timeout would occur for the device.

(Note.1)

For SECURITY ERASE UNIT command, the execution time is referred to “14.28 Security

 

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Hitachi HDS723020BLA642 manual Timings, Timeout Values

HDS723020BLA642 specifications

The Hitachi HDS723020BLA642 is a high-performance hard disk drive that exemplifies the balance between reliability and advanced technology, making it an excellent choice for a range of applications, from desktop computers to enterprise storage solutions. This 2TB SATA hard drive is designed to meet the growing data storage needs of users who demand both speed and efficiency.

One of the key features of the HDS723020BLA642 is its impressive rotational speed of 7200 RPM. This speed facilitates faster data access and improved overall performance, significantly enhancing the user experience during data-intensive operations such as gaming, video editing, and large file transfers. Coupled with a SATA III interface, this drive facilitates data transfer rates of up to 6 Gb/s, providing an efficient conduit for moving data quickly between the hard drive and the motherboard.

The drive comes equipped with a large 64 MB cache, which plays a crucial role in buffering read and write operations. This substantial amount of cache memory allows the drive to temporarily store frequently accessed data, leading to reduced latency and enabling smoother multitasking capabilities. Users will benefit from faster load times and reduced wait periods when working with large files.

Reliability is another defining characteristic of the HDS723020BLA642. Hitachi, now a part of Western Digital, has a longstanding reputation for producing durable hard drives. This model incorporates advanced technologies, such as the Fluid Dynamic Bearing (FDB) for quieter operation and better longevity. The drive also features an enhanced error recovery system that minimizes the risk of data loss, making it a suitable option for both personal and professional use.

In terms of power efficiency, the HDS723020BLA642 is designed to consume less power during operation compared to older hard drive models. This efficiency not only helps in reducing operational costs but also contributes to a longer lifespan for the drive itself.

Overall, the Hitachi HDS723020BLA642 hard drive combines speed, reliability, and efficiency into a compact package, making it an ideal choice for users needing a substantial amount of storage without compromising on performance. Whether for upgrading an existing system or building a new one, this drive offers a blend of technology and durability that caters to modern storage demands.