User manual MAXTOR 545XE

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Medalist XE Family . . . . . . ATA Interface Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The drive is a master; a slave is present that uses only the PDIAG­ signal. The drive is a slave to an ATA-compatible master. Connectors and jumpers 2. 4. 1 Single-drive configuration Use the factory-default jumper setting when the Medalist drive is installed as the single drive in the computer. 2. 4. 2 Two-drive configuration When two drives are installed in the computer, you must configure one drive as the master and the other as the slave. 14 Medalist XE Family Product Manual, Rev. B 2. 4. 2. 1 Medalist drive as master The Medalist drives provide for three ways the slave can identify itself. You can configure the Medalist drive for a slave that is: · An ATA-compatible drive · A non-ATA-compatible drive that does not conform to the DASP­ timing parameter of the ATA spec · A non-ATA-compatible drive that does not conform to the DASP­ timing parameter of the ATA spec but negates PDIAG­ when the drive is ready 2. 4. 2. 2 Medalist drive as slave The Medalist drive conforms to the ATA standard for slave identification. If the master drive is a non-ATA-compatible drive, it may not recognize the Medalist drive in the slave position. We recommend that you configure your Medalist drive as the master when used with a non-ATA-compatible drive. 2. 4. 3 Cable-select configuration If your computer and both of your drives support cable select (CSEL), you can use the cable select option to determine the master and slave. To configure your drives to use cable select, you need to install jumpers and to use a special cable-select cable as follows: · Install a jumper on pins 3 and 4 of the master/slave jumper block as shown in Figure 3 on page 13. When a jumper is installed in this position, the drive ignores the jumper installed on pins 7 and 8. · You must use an interface cable built for cable-select. To make a drive the master, attach it to the connector that has the CSEL signal line connected to pin 28. To make a drive the slave, attach it to the connector that has pin 28 unconnected (CSEL is not carried to pin 28 of that cable connector. ) Note that CSEL is grounded at the host. Medalist XE Family Product Manual, Rev. B 15 Slave CSEL not carried to pin 28 of this connector Master Pin 28 grounded at computer Computer Figure 4. Connecting cable-selected drives 2. 4. 4 Factory-test configuration Do not install jumpers on pins 5 and 6 and pins 7 and 8 at the same time. This configuration is used to test the drive at the factory. When jumpers are installed in both of these positions, the heads continuously seek back and forth across the media and the drive ignores all control signals sent by the interface. 2. 5 Optional drive activity LED The drives are available with or without the external activity LED shown in Figure 3 on page 13. This option is available for users for whom the activity display through the bus is inaccessible or inconvenient. There are two LED options: · The LED is mounted directly on the printed circuit board, or · A two-pin header is mounted on the printed circuit board for a remote LED. The anode pin of the header is nearest the edge of the PCB. 16 Medalist XE Family Product Manual, Rev. B 2. 6 Mounting the drive You can mount the drive in any orientation using either the bottom or the side mounting holes, as described below. Figure 5 shows the SAE dimensions for the drive. Figure 6 on page 18 shows the metric dimensions for the drive. [. . . ] The number of sectors per block to be transferred without intervening interrupts is programmed by the Set Multiple Mode command, which must be executed before the Write Multiple command. When the Write Multiple command is issued, the Sector Count register contains the number of sectors (not the number of blocks or the block count) requested. If the number of requested sectors is not evenly divisible by the block count, as many full blocks as possible are transferred, followed by a final, partial-block transfer. The partial-block transfer is for n sectors, where n = remainder (sector count / block count) If the Write Multiple command is attempted before the Set Multiple Mode command has been executed or when Write Multiple commands are disabled, the Write Multiple operation is rejected with an aborted command error. 30 Medalist XE Family Product Manual, Rev. [. . . ]