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Fujitsu MHC2032AT, MHD2021AT, MHC2040AT, MHD2032AT manual Dasp, Iordy, Ddmardy

Models: MHC2040AT MHC2032AT MHD2032AT MHD2021AT

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5.1 Physical Interface

[signal]

[I/O]

[Description]

IOCS16-

O

This signal indicates 16-bit data bus is addressed in PIO data transfer.

 

 

This signal is an open collector output.

 

 

− When IOCS16- is not asserted:

 

 

8 bit data is transferred through DATA0 to DATA7 signals.

 

 

− When IOCS16- is asserted:

 

 

16 bit data is transferred through DATA0 to DATA15 signals.

CS0-

I

Chip select signal decoded from the host address bus. This signal

 

 

is used by the host to select the command block registers.

CS1-

I

Chip select signal decoded from the host address bus. This signal

 

 

is used by the host to select the control block registers.

DA 0-2

I

Binary decoded address signals asserted by the host to access task

 

 

file registers.

KEY

-

Key pin for prevention of erroneous connector insertion

PDIAG-

I/O

This signal is an input mode for the master device and an output

 

 

mode for the slave device in a daisy chain configuration. This

 

 

signal indicates that the slave device has been completed self

 

 

diagnostics.

 

 

This signal is pulled up to +5 V through 10 kΩ resistor at each device.

DASP-

I/O

This is a time-multiplexed signal that indicates that the device is

 

 

active and a slave device is present.

 

 

This signal is pulled up to +5 V through 10 kΩ resistor at each device.

IORDY

O

This signal requests the host system to delay the transfer cycle

 

 

when the device is not ready to respond to a data transfer request

 

 

from the host system.

DDMARDY

O

Flow control signal for Ultra DMA data Out transfer (WRITE

-

 

DMA command). This signal is asserted by the device to inform

 

 

the host that the device is ready to receive the Ultra DMA data

 

 

Out transfer. The device can negate the DDMARDY- signal to

 

 

suspend the Ultra DMA data Out transfer.

DSTROBE

O

Data In Strobe signal from the device during Ultra DMA data In

 

 

transfer. Both the rising and falling edges of the DSTROBE

 

 

signal latch data from Data 15-0 into the host. The device can

 

 

suspend the inversion of the DSTROBE signal to suspend the

 

 

Ultra DMA data In transfer.

CSEL

I

This signal to configure the device as a master or a slave device.

 

 

− When CSEL signal is grounded,, the IDD is a master device.

 

 

− When CSEL signal is open,, the IDD is a slave device.

 

 

This signal is pulled up with 240 kΩ resistor at each device.

DMACK-

I

The host system asserts this signal as a response that the host

 

 

system receive data or to indicate that data is valid.

C141-E050-02EN

5-5

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Fujitsu MHC2032AT, MHD2021AT, MHC2040AT, MHD2032AT manual Dasp, Iordy, Ddmardy
Page 75 Page 77

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.