User manual MAXTOR MARATHON 810

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 810 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 810 (ST9816AG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Operation with noncertified assemblies is likely to result in interference with radio and television reception. This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the manufacturer's instructions, may cause interference to radio and television reception. This equipment is designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television, which can be determined by turning the equipment on and off, you are encouraged to try one or more of the following corrective measures: · Reorient the receiving antenna. · Plug the computer into a different outlet so that the receiver and computer are on different branch outlets. If necessary you should consult your dealer or an experienced radio/television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications 14 Marathon 810 (ST9816AG) Product Manual, August 1995 Commission: How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Superintendent of Documents, US Government Printing Office, Washington, DC 20402. Refer to publication number 004-000-00345-4. Marathon 810 (ST9816AG) Product Manual, August 1995 15 2. 0 Drive mounting and configuration 2. 1 Handling and static-discharge precautions After unpacking, and before installation, the drive may be exposed to potential handling and ESD hazards. It is mandatory that you observe standard static-discharge precautions. Avoid contact with the printed circuit board, all electronic components and the interface connector. Always rest the drive on a padded antistatic surface until you mount it in the host system. 2. 2 Jumper settings 2. 2. 1 Master/slave configuration You must establish a master/slave relationship between two drives attached to a single AT bus. You can configure a drive to become a master or slave by setting the master/slave jumpers, as described below and shown in Figure 2 on page 16. Alternatively, you can configure the drive as a master or slave using the cable select option. This requires a specialized daisy-chain cable that grounds pin 28 (CSEL) on one of its two drive connectors. If you attach the drive to the grounded CSEL connector, it becomes a master. If you attach the drive to the ungrounded CSEL connector, it becomes a slave. To use this option, the host system and both drives must support cable select and both drives must be configured for cable select. To configure an ST9816AG for cable select, install both master/slave jumpers. For the host to recognize the slave drive using the DASP­ signal, the slave drive must assert the DASP­ signal at power up, and the master drive must monitor DASP­ at power up. 16 Marathon 810 (ST9816AG) Product Manual, August 1995 Note. Drive is shown with circuit board up. Master/slave Pin 1 configuration jumpers Pin 20 removed for keying Circuit board B A D C Drive is master; slave may be detected using DASP­ signal Drive is master; Seagate slave drive present Drive is slave; Seagate master drive present Use CSEL pin grounding to differentiate master from slave Figure 2. [. . . ] 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 Proposed Working Draft of the ATA-2 Draft Proposed American National Standard, document X3T9. 2/948D (subsequently referred to as the Draft Proposed ATA-2 Standard). 3. 1 ATA interface signals and connector pins Figure 5 on page 22 summarizes the signals on the ATA interface connector that are supported by the ST9816AG. For a detailed description of these signals, refer to the Draft Proposed ATA-2 Standard. 3. 1. 1 AT bus signal levels Signals that the drive sends have the following output characteristics at the drive connector: Logic Low Logic High 0. 0V to 0. 4V 2. 5V to 5. 25V Signals that the drive receives must have the following input characteristics, measured at the drive connector: Logic Low Logic High 0. 0V to 0. 8V 2. 0V to 5. 25V 22 Marathon 810 (ST9816AG) Product Manual, August 1995 Drive pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Signal name Reset­ Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Ground DIOW­ Ground DIOR­ Ground IORDY CSEL DMACK­ Ground INTRQ IOCS16­ DA1 PDIAG­ DA0 DA2 CS1FX­ CS3FX­ DASP­ Ground Power Power Ground Reserved Host pin # and signal description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Host Reset Ground Host Data Bus Bit 7 Host Data Bus Bit 8 Host Data Bus Bit 6 Host Data Bus Bit 9 Host Data Bus Bit 5 Host Data Bus Bit 10 Host Data Bus Bit 4 Host Data Bus Bit 11 Host Data Bus Bit 3 Host Data Bus Bit 12 Host Data Bus Bit 2 Host Data Bus Bit 13 Host Data Bus Bit 1 Host Data Bus Bit 14 Host Data Bus Bit 0 Host Data Bus Bit 15 Ground (No Pin) DMA Request Ground Host I/O Write Ground Host I/O Read Ground I/O Channel Ready Cable Select pin DMA Acknowledge Ground Host Interrupt Request Host 16 Bit I/O Host Address Bus Bit 1 Passed Diagnostics Host Address Bus Bit 0 Host Address Bus Bit 2 Host Chip Select 0 Host Chip Select 1 Drive Active / Slave Present Ground +5 volts DC (logic) +5 volts DC (motor) Ground for power pins Reserved Pins 28, 34 and 39 are used for master-slave communication (details shown below). Drive 1 (slave) 28 34 39 Drive 0 (master) 28 34 39 CSEL PDIAG­ DASP­ Host 28 34 39 Figure 5. [. . . ]