Seagate 2531, 3240 3.0 ATA interface

3.0 ATA interface

This drive uses the industry-standard ATA task file interface. It supports

both 8-bit and 16-bit data transfers. It supports ATA programmed in-

put/output (PIO) modes 0, 1, 2, 3 and 4; ATA single-word DMA modes

0, 1 and 2; and ATA multiword DMA modes 0, 1 and 2. The drive also

supports the use of the IORDY signal to provide reliable high-speed data

transfers.

You can use a daisy-chain cable to connect two drives to a single AT

host bus. For detailed information regarding the ATA interface, refer to

the

Draft ATA-3 document X3T10 2008, Revision 6,

subsequently re-

ferred to as the

Draft Proposed ATA-3 Standard

.

3.1 ATA interface signals and connector pins

Figure 4 on page 22 summarizes the signals on the ATA interface

connector that the drive supports. For a detailed description of these

signals, refer to the

Draft Proposed ATA-3 Standard.

3.1.1 AT bus signal levels

Signals that the drive receives must have the following characteristics at

the drive connector:

Logic low 0. 0V to 0.7V

Logic high 2.0V to 5.25V

Medalist 3240 and Medalist 2531 Product Manual, Rev. A 21

Contents

Main Page Page Page Contents Page Page Page Introduction Specification summary table 2 Medalist 3240 and Medalist 2531 Product Manual, Rev. A Drive Spe cificati on ST33240A ST32531A Medalist 3240 and Medalist 2531 Product Manual, Rev. A 3 Page 1.0 Drive specifications this drive all n the drive 1.2 Physical organization 1.3 Recording and interface tec hn ology 1.4 Physical characteristics 1.5 Seek time 1.6 Start/stop times 1.7 Power specifications 1.7.1 Power consumption 1.7.1.1 Typical current profile 1.7.2 Conduct ed noise 1.7.3 Voltage tolerance 1.7.4 Power-management modes Page 1.8.5 Shock 1.8.5.1 Operating shock 1.8.5.2 Nonoperating shock 1.8.6 Vibration 1.8.6.1 Operating vibration 1.8.6.2 Nonoperating vibration 1.9 Drive acoustics 1.10 Electromagnetic susceptibility 1.11 Reliability 1.12 Agency certification 1.12.1 Safety certification 1.12.2 Electromagnetic Compatibility 1.12.3 FCC verification How to Identify and Resolve Radio-Television Interference Problems Page 2.0 Drive mounting and configuration 2.1 Handling and static-d isch ar ge pr ecau ti on s 2.2 Jumper settings 2.2.1 Master/slave configuration 2.2.2 Alternate capacity jumper 2.3 Drive mounting Medalist 3240 and Medalist 2531 Product Manual, Rev. A 19 xx xxx Figure 3. Mounting dimensions for the ST33240A and ST32531Atop, side and end view Page 3.0 ATA interface Draft ATA-3 document X3T10 2008, Revision 6, Draft Proposed ATA-3 Standard 3.1 ATA interface signals and connector pins Draft Proposed ATA-3 Standard. 22 Medalist 3240 and Medalist 2531 Product Manual, Rev. A Figure 4. I/O pins and supported ATA signals 3.2 ATA Interface commands 3.2.1 Supported ATA commands Draft Proposed ATA-3 Standard. Page Draft Proposed ATA-3 Standard 3.2.2 Identify Drive command xx Page 3.2.3 Set Features command 3.2.4 S.M.A.R.T. commands Draft Proposed ATA-3 Standard.