5.1 Physical Interface

 

 

 

[signal]

[I/O]

[Description]

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.

CBLID-

I/O

This signal is used to detect the type of cable installed in the

 

 

system.

 

 

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-E104-02EN

5-5

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Fujitsu MHM215OAT, MHM200AT, MHM2100AT, MHL2300AT manual Key, Pdiag, Cblid, Dasp, Iordy, Ddmardy

MHM215OAT, MHM200AT, MHL2300AT, MHM2100AT specifications

Fujitsu, a leader in storage technology, has developed a range of hard disk drives designed for reliability and performance, catering to both enterprise and consumer needs. The Fujitsu MHM2100AT, MHL2300AT, MHM200AT, and MHM215OAT models are part of this impressive lineup, showcasing various features and technologies that set them apart.

The MHM2100AT model is known for its 2.5-inch form factor, offering a storage capacity of 100GB. It operates at a speed of 5400 RPM, which balances performance and power efficiency. The drive utilizes ATA-6 interface (Parallel ATA) ensuring compatibility with a wide range of systems. One of its primary features is the advanced cache memory architecture, which allows for quicker access to frequently used data. This enhances overall system performance while preserving energy consumption.

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In conclusion, Fujitsu's MHM2100AT, MHL2300AT, MHM200AT, and MHM215OAT each possess unique features and technologies that cater to diverse user needs. Their combination of efficient power consumption, enhanced data integrity, and reliability make them compelling choices for businesses and individuals alike. Whether for mobile devices, personal computing, or enterprise applications, these models continue to exemplify Fujitsu's commitment to quality and performance in storage solutions.