User manual MAXTOR MEDIALIST 2520

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist 2520 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ultra ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist 2520 (ST32520A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ultra ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Do not press down on the drive top cover. · Always rest the drive on a padded, antistatic surface until you mount it in the computer. · Do not touch the connector pins or the printed circuit board. · Do not remove the factory-installed labels from the drive or cover them with additional labels. Some factory-installed labels contain information needed to service the drive. Other labels are used to seal out dirt and contamination. 18 Medalist 2520 Product Manual, Rev. A 2. 2 I/O cable and connector The drive uses a 40-pin, male I/O connector with two rows of twenty pins each and a notch for keying. A drawing of the I/O connector is shown in Figure 2. Pin 1 is located near the 4-pin power connector when the I/O connector is mounted. 0. 100 ± 0. 010 0. 70 ± 0. 010 0. 235 ± 0. 025 pin 1 0. 230 ± 0. 003 0. 025 ± 0. 002 0. 025 ± 0. 002 0. 160 1. 90 2. 00 0. 100 typ 0. 070 ± 0. 010 Figure 2. ATA interface connector The table below lists recommended parts for the mating connector. Part Connector Connector Flat cable Description 40-pin 40-pin AWG28 (stranded) 3M part number 3M-3417-7000 3M-3448-2040 3M-3365-40 To ensure the integrity of your data, use a 40-connector, nonshielded I/O cable with a maximum length of 18 inches (46 centimeters). 2. 3 Power connector The drive uses a standard 4-pin, male power connector. We recommend the following part number or its equivalent for the mating connector. Part Connector Connector Connector Cable Description Housing Pin (loose piece) Pin (reel) 18 AWG Part number AMP 1-480424-0 AMP 60619-4 AMP 6117-4 -- Medalist 2520 Product Manual, Rev. A 19 2. 4 Options jumper block The options jumper block (J5), shown in Figure 4, is used to configure the drive for operation. It is the 8-pin dual header between the I/O connector and the power connector. Pin 1 is located next to the power connector and is farthest from the printed circuit board. The options jumper block is used to: · Configure the drive for single-drive operation. · Configure the drive as master with an ATA-compatible or non-ATA slave. · Configure the drive as the slave. · Configure the drive for alternate capacity. · Configure the drive for cable select. The jumper settings for these options are shown in Figure 4 on page 22. [. . . ] Signal Line Definitions Pin 21 29 27 25 25 27 23 New Definitions DMARQ ­DMACK ­DMACK STROBE STOP Old Definitions DMARQ ­DMACK IORDY on write commands ­DIOR on read commands ­DIOR on write commands IORDY on read commands ­DIOW Note. DMARQ and ­DMACK signal lines remain unchanged. This ensures backward-compatibility with PIO modes. 3. 3. 2 Protocol rules The general rules of the Synchronous DMA Transfer Protocol are as follows: · A DMA burst is defined as the period from an assertion of ­DMACK to subsequent deassertion of ­DMACK. · A receiver must be prepared to receive at least two words of data whenever it enters or resumes a burst mode. [. . . ]