User manual MAXTOR MARATHON 541

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Marathon 541 (ST9546A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ATA Interface Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] As such, each drive is considered to be a subassembly even when it is individually marketed to the customer. As a subassembly, no Federal Communications Commission authorization, verification or certification of the device is required. has tested this device in enclosures as described above to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc. ) does comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of the FCC rules. 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. · Move the device to one side or the other of the radio or TV. · Move the device farther away from the radio or TV. · 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 541 (ST9546A) Product Manual, September 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 541 (ST9546A) Product Manual, September 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. Observe standard static-discharge precautions. Handle the drive only by the sides of the head/disc assembly. 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. [. . . ] 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 541 (ST9546A) Product Manual, September 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. I/O pins and associated ATA signals that the Marathon 541 supports Marathon 541 (ST9546A) Product Manual, September 1995 23 3. 2 ATA Interface commands 3. 2. 1 Supported ATA commands The following table lists ATA-standard and Seagate-specific drive commands that the Marathon 541 supports. For a detailed description of the ATA commands, refer to the Draft Proposed ATA-2 Standard. [. . . ]