Contents

Figure 5.5

WRITE SECTOR(S) command protocol

5-73

 

Figure 5.6

Protocol for the command execution without data transfer 5-

 

75

 

 

 

 

 

 

Figure 5.7

Normal DMA data transfer

5-76

 

 

 

 

Figure 5.8

An example of generation of parallel CRC

5-90

 

Figure 5.9

Ultra DMA termination with pull-up or pull-down

5-91

Figure 5.10

Data transfer timing 5-93

 

 

 

 

 

Figure 5.11

Single word DMA data transfer timing (mode 2)

5-94

Figure 5.12

Multiword DMA data transfer timing (mode 2)

5-95

Figure 5.13

Starting of Ultra DMA data In Burst transfer

5-96

Figure 5.14

Sustained Ultra DMA data in burst

5-99

 

 

 

Figure 5.15

Host pausing an Ultra DMA data in burst

5-100

 

Figure 5.16

Device terminating an Ultra DMA data in burst

5-101

Figure 5.17

Host terminating an Ultra DMA data in burst

5-102

Figure 5.18

Initiating an Ultra DMA data out burst 5-103

 

Figure 5.19

Sustained Ultra DMA data out burst

5-104

 

 

Figure 5.20

Device pausing an Ultra DMA data out burst

5-105

Figure 5.21

Host terminating an Ultra DMA data out burst

5-106

Figure 5.22

Device terminating an Ultra DMA data out burst

5-107

Figure 5.23

Power on Reset Timing

5-108

 

 

 

 

Figure 6.1

Response to power-on

6-3

 

 

 

 

 

Figure 6.2

Response to hardware reset

6-4

 

 

 

 

Figure 6.3

Response to software reset

6-5

 

 

 

 

Figure 6.4

Response to diagnostic command

6-6

 

 

 

Figure 6.5

Address translation (example in CHS mode)

6-8

 

Figure 6.6

Address translation (example in LBA mode)

6-9

 

Figure 6.7

Sector slip processing

6-12

 

 

 

 

 

Figure 6.8

Alternate cylinder assignment

6-13

 

 

 

Figure 6.9

Data buffer configuration 6-14

 

 

 

 

Tables

Table 1.1

Specifications (MHC2032AT/MHC2040AT)

1-4

Table 1.2

Specifications (MHD2021AT/MHD2032AT)

1-5

Table 1.3

Model names and product numbers

1-6

 

Table 1.4

Current and power dissipation

1-7

 

Table 1.5

Environmental specifications

1-8

 

 

Table 1.6

Acoustic noise specification

1-8

 

 

Table 1.7

Shock and vibration specification

1-9

 

C141-E050-02EN

xiii

Page 18
Image 18
Fujitsu MHC2040AT, MHC2032AT, MHD2021AT, MHD2032AT manual Tables

MHC2040AT, MHC2032AT, MHD2032AT, MHD2021AT specifications

Fujitsu offers a range of advanced hard disk drives (HDD) designed for various computing needs, including the MHD2021AT, MHD2032AT, MHC2032AT, and MHC2040AT models. These drives combine reliable performance, capacity options, and technological features aimed at enhancing data storage efficiency.

The Fujitsu MHD2021AT is known for its capacity of 20 GB, making it an excellent choice for users requiring a compact and efficient HDD. With a spindle speed of 5400 RPM, it balances speed and power consumption, catering to mobile computing and lower power devices. Its ATA interface ensures compatibility with a wide range of systems, making it a versatile option for various applications.

The MHD2032AT model offers a slightly higher capacity of 30 GB, maintaining similar technological attributes to its predecessor. With an enhanced data transfer rate, it allows for quicker access to stored files, perfect for users handling larger volumes of data. The robust error correction features in this model further ensure data integrity, making it a reliable choice for demanding environments.

For users needing more robust storage solutions, the MHC2032AT steps it up with features tailored for performance-heavy applications. Its 30 GB capacity is suited for desktop and workstation environments that require swift data retrieval and significant storage. The drive employs advanced caching techniques, which boost performance further by optimizing read and write operations, ensuring smoother multitasking capabilities.

The MHC2040AT is the flagship model in this line, providing an impressive storage capacity of 40 GB. This HDD is designed for high-performance applications where speed is crucial. The drive’s increased spindle speed and superior data transfer rates make it ideal for video editing, gaming, and large database management. Alongside its enhanced performance features, it includes advanced thermal management technology that maintains optimal operational temperatures, prolonging the drive's lifespan.

All four models leverage Fujitsu's commitment to data reliability, featuring robust shock resistance and low noise levels. Collectively, these drives cater to a spectrum of user needs, from compact data storage to high-capacity solutions, maintaining Fujitsu's reputation for quality and innovation in the storage market.