H A RD D RI V E P RO D UC T M A N UA L DiamondMax™ 4320 91728D8, 91512D7, 91303D6 91080D5 90845D4, 90648D3 90432D2
DiamondMax™ 4320 91728D8, 91512D7, 91303D6, 91080D5 90845D4, 90648D3, 90432D2 Part #1407 All material contained herein Copyright © 1998 Maxtor Corporation. DiamondMax™, DiamondMax™ 1280, DiamondMax™ 1750, DiamondMax™ 2160, DiamondMax™ 2880, DiamondMax™ 3400, DiamondMax™ 4320, DiamondMax™ Plus 2500 and MaxFax™ are trademarks of Maxtor Corporation. No Quibble® Service is a registered trademark of Maxtor Corporation.
Revisions Manual No.
Before You Begin Thank you for your interest in the Maxtor DiamondMax™ 4320 AT hard disk drives. This manual provides technical information for OEM engineers and systems integrators regarding the installation and use of DiamondMax hard drives. Drive repair should be performed only at an authorized repair center. For repair information, contact the Maxtor Customer Service Center at 800-2MAXTOR or 408-432-1700. Before unpacking the hard drive, please review Sections 1 through 4.
DIAMONDMAX 4320 PRODUCT MANUAL Contents Section 1 — Introduction Maxtor Corporation Products Support Manual Organization Abbreviations Conventions Key Words Numbering Signal Conventions 1-1 1-1 1-1 1-1 1-1 1-2 1-2 1-2 1-2 Section 2 — Product Description The DiamondMax™ 4320 Product Features Functional/Interface Zone Density Recording Read/Write Multiple Mode UltraDMA - Mode 2 Multi-word DMA (EISA Type B) - Mode 2 Sector Address Translation Logical Block Addressing Defect Management Zone On-the-Fly Hardwa
DIAMONDMAX 4320 PRODUCT MANUAL Section 3 — Product Specifications Models and Capacities Drive Configuration Performance Specifications Physical Dimensions Power Requirements Power Mode Definitions Spin-up Seek Read/Write Idle Standby Sleep EPA Energy Star Compliance Environmental Limits Shock and Vibration Reliability Specifications AFR MTBF Quality Acceptance Rate Start/Stop Cycles Data Reliability Component Design Life EMC/EMI EMC Compliance Canadian Emissions Statement Safety Regulatory Compliance 3-1
DIAMONDMAX 4320 PRODUCT MANUAL BIOS Requirements Ultra Direct Memory Access (UDMA) OS Requirements for Large Capacity Hard Drives Hard Drive Identification Identifying IDE Devices on the Interface Jumper Settings Systems Using Cable Select Relationship to Other IDE Devices Mounting Drive in System Attaching Interface and Power Cables Attaching System Cables System Setup Setting the BIOS (CMOS) BIOS (CMOS) Parameters Hard Drive Preparation System Hangs During Boot 4-5 4-5 4-5 4-6 4-6 4-6 4-6 4-6 4-7 4-7 4-
DIAMONDMAX 4320 PRODUCT MANUAL Alternate Status Register Device Control Register Digital Input Register Reset and Interrupt Handling 6-5 6-5 6-5 6-6 Section 7 — Interface Commands Command Summary Read Commands Read Sector(s) Read Verify Sector(s) Read Sector Buffer Read DMA Read Multiple Set Multiple Write Commands Write Sector(s) Write Verify Sector(s) Write Sector Buffer Write DMA Write Multiple Ultra DMA Set Feature Commands Set Features Mode Power Mode Commands Standby Immediate Idle Immediate Standb
DIAMONDMAX 4320 PRODUCT MANUAL Figures Figure Title Page 2-1 3-1 4-1 4-2 4-3 4-4 4-5 4-6 4-7 5-1 5-2 5-3 5-4 5-5 5-6 5-7 5-8 5-9 5 - 10 5 - 11 5 - 12 5 - 13 PCBA Jumper Location and Configuration Outline and Mounting Dimensions Multi-pack Shipping Container Single-pack Shipping Container (Option A) Single-pack Shipping Container (Option B) Master, Slave and Cable Select Settings 5.
DIAMONDMAX 4320 – INTRODUCTION SECTION 1 Introduction Maxtor Corporation Maxtor Corporation has been providing high-quality computer storage products since 1982. Along the way, we’ve seen many changes in data storage needs. Not long ago, only a handful of specific users needed more than a couple hundred megabytes of storage. Today, downloading from the Internet and CD-ROMs, multimedia, networking and advanced office applications are driving storage needs even higher.
DIAMONDMAX 4320 – INTRODUCTION Conventions If there is a conflict between text and tables, the table shall be accepted as being correct. Key Words The names of abbreviations, commands, fields and acronyms used as signal names are in all uppercase type (e.g., IDENTIFY DRIVE). Fields containing only one bit are usually referred to as the “name” bit instead of the “name” field. Names of drive registers begin with a capital letter (e.g., Cylinder High register).
PRODUCT DESCRIPTION SECTION 2 Product Description Maxtor DiamondMax™ 4320 AT disk drives are 1-inch high, 3.5-inch diameter random access storage devices which incorporate an on-board ATA-4/Ultra DMA controller. High capacity is achieved by a balanced combination of high areal recording density and the latest data encoding and servo techniques. Maxtor's latest advancements in electronic packaging and integration methods have lowered the drive's power consumption and increased its reliability.
PRODUCT DESCRIPTION Product Features Functional / Interface Maxtor DiamondMax™ 4320 hard drives contain all necessary mechanical and electronic parts to interpret control signals and commands from an AT-compatible host computer. See Section 3 Product Specifications, for complete drive specifications. Zone Density Recording The disk capacity is increased with bit density management – common with Zone Density Recording. Each disk surface is divided into 16 circumferential zones.
PRODUCT DESCRIPTION Logical Block Addressing The Logical Block Address (LBA) mode can only be utilized in systems that support this form of translation. The cylinder, head and sector geometry of the drive, as presented to the host, differs from the actual physical geometry. The host AT computer may access a drive of set parameters: number of cylinders, heads and sectors per track, plus cylinder, head and sector addresses.
PRODUCT DESCRIPTION Cache Management Buffer Segmentation The data buffer is organized into two segments: the data buffer and the micro controller scratch pad. The data buffer is dynamically allocated for read and write data depending on the commands received. A variable number of read and write buffers may exist at the same time. Read-Ahead Mode Normally, this mode is active. Following a read request, disk read-ahead begins on the first sector and continues sequentially until the allocated buffer is full.
PRODUCT DESCRIPTION Major HDA Components Drive Mechanism A brush-less DC direct drive motor rotates the spindle at 5,400 RPM (±0.1%). The dynamically balanced motor/spindle assembly ensures minimal mechanical run-out to the disks. A dynamic brake provides a fast stop to the spindle motor upon power removal. The speed tolerance includes motor performance and motor circuit tolerances.
PRODUCT DESCRIPTION Subsystem Configuration Dual Drive Support Two drives may be accessed via a common interface cable, using the same range of I/O addresses. The drives are jumpered as device 0 or 1 (Master/Slave), and are selected by the drive select bit in the Device/Head register of the task file. All Task File registers are written in parallel to both drives.
PRODUCT SPECIFICATIONS SECTION 3 Product Specifications Models and Capacities M O DEL Formatted Capacity (MB LBA Mode) 91728D 8 91512D 7 91303D 6 91080D 5 90845D 4 90648D 3 90432D 2 17,280 15,120 13,030 10,800 8,455 6,480 4,320 Maxtor defines one megabyte as 106 or one million bytes and one gigabyte as 109 or one billion bytes.
PRODUCT SPECIFICATIONS Physical Dimensions PARAMETER H e ig h t Length W id t h Weight STANDARD 1.02 inch 5.77 inches 4.02 inches 1.3 pounds M E T R IC 2 5 .9 m illim e t e r s 146.6 millimeters 102.1 millimeters 0 .5 9 k ilo g r a m s 1.028 max [25.9 mm] 6 x 6-32 UNC Tap 1.638 ± .005 [41.61 mm] 1.122 ± .02 [28.4 mm] .25 ± .01 4.000 ± .01 [101.6 mm] 5.787 max [146.6 mm] 4 x 6-32 UNC Tap 1.75 ± .02 1.625 ± .02 4.00 ± .01 [102.1 mm] 3.75 ± .01 [95.
PRODUCT SPECIFICATIONS Power Requirements (Average) M ODE 12V ± 5% 5V ± 5% P OW E R Spin-up (peak) 1670 mA 330 mA 21.7 W Seek 670 mA 350 mA 9 .8 W Read/Write 230 mA 420 mA 4 .9 W Id le 4 .1 W 240 mA 250 mA Standby 16 mA 150 mA 0 .9 W S le e p 14 mA 50 mA 0 .4 W Power Mode Definitions Spin-up The drive is spinning up following initial application of power and has not yet reached full speed. Seek A random access operation by the disk drive.
PRODUCT SPECIFICATIONS Shock and Vibration PARAMETER OPERATING NON-OPERATING Mechanical Shock Rotational Shock Random Vibration 20 Gs, 2.0 ms, no errors 2 0 0 G s , 2 .0 m s , n o d a m a g e 15,000 Rad/sec/sec, no damage 10 - 2,000 Hz at 2.15 Grms, no damage Swept Sine Vibration 5 - 20 Hz 21 - 30 0 Hz 10 - 45 Hz at 0.004 G2/Hz 4 8 - 6 2 H z a t 0 .0 0 8 G 2 /H z 6 5 - 3 0 0 H z a t 0 .0 0 4 G 2 /H z 301 - 500 Hz at 0.0006 G2/Hz no errors 0.049 inches double amplitude 1.
PRODUCT SPECIFICATIONS EMC/EMI Radiated Electromagnetic Field Emissions - EMC Compliance The hard disk drive mechanism is designed as a subassembly for installation into a suitable enclosure and is therefore not subject to Subpart J of Part 15 of FCC Rules (47CFR15) or the Canadian Department of Communications Radio Interference Regulations.
INSTALLATION SECTION 4 Handling and Installation Pre-formatted Drive This Maxtor hard drive has been formatted at the factory. Do not use a low-level formatting program. Important Notice There are a number of system BIOS’s currently in use which do not support hard drives with more than 4095 cylinders (2.1 gigabytes). This section contains information describing the conditions which may identify this limitation.
INSTALLATION Unpacking and Inspection Retain any packing material for reuse. Inspect the shipping container for evidence of damage in transit. Notify the carrier immediately in case of damage to the shipping container. As they are removed, inspect drives for evidence of shipping damage or loose hardware. If a drive is damaged (and no container damage is evident), notify Maxtor immediately for drive disposition.
INSTALLATION Figure 4 - 2 Single Pack Shipping Container (Option A) Figure 4 - 3 Single Pack Shipping Container (Option B) Repacking If a Maxtor drive requires return, repack it using Maxtor packing materials, including the antistatic bag. Physical Installation Recommended Mounting Configuration The DiamondMax™ 4320 drive design allows greater shock tolerance than that afforded by larger, heavier drives.
INSTALLATION 1 Before You Begin IMPORTANT – PLEASE READ! Please read this Installation Sheet completely before installing the Maxtor hard drive. It gives general information for installing a Maxtor hard drive in a typical computer system. If you don’t understand the installation steps, have a qualified computer technician install the hard drive. Handling Precautions P ( Allow the hard drive to reach room temperature BEFORE installing it in your computer system.
INSTALLATION 2 General Requirements System Hardware Requirements The minimum system Maxtor recommends for drives 8.4 GB or less is a 486 DX 66 MHz system. For drives larger than 8.4 GB, we recommend a Pentium-class system. BIOS Requirements System BIOS dated prior to September 1997 do not support drives greater than 8.4 GB. To obtain the full capacity of a drive larger than 8.4 GB, upgrade the BIOS, install a BIOS enhancer card or use the MaxBlast installation software (version 9.06 or newer).
INSTALLATION Before installing the drive in the computer, you must determine how the jumpers on the Maxtor hard drive are to be set for your system based upon the use of the Maxtor hard drive as either a Master or Slave device. Maxtor hard drives are shipped with the Master jumper setting enabled.
INSTALLATION 5 Attaching Interface and Power Cables In order for the computer to recognize that the Maxtor hard drive is in the system, the power cable and IDE interface cable must be properly connected. 1 Attach an available IDE interface connector to J1 on the Maxtor hard drive. The striped or colored edge of the IDE interface cable indicates pin 1. Pin 1 on the IDE interface cable connector must match pin 1 on the Maxtor hard drive IDE interface connector – closest to the drive power connector.
INSTALLATION 7 System Setup The following procedures are designed for systems using the DOS 5.0 (or higher), Windows 95 and Windows 98 operating systems. For other operating systems (e.g., Windows NT, OS2, UNIX, LINUX and Novell NetWare), refer to the operating system user’s manual for the BIOS setting and other installation requirements. For drives with capacities larger than 8.4 GB, the full installation set for Windows 95A or 95B (OSR2), Windows 98 or equivalent, is required.
INSTALLATION Set the Cylinder, Head and Sector values with the values listed on the drive label. The drive label is located on the top cover of the drive. The fields LZone (Landing Zone) and WPcom (Write Pre-comp) are not used by the Maxtor hard drive. These fields may be set to 0 or by the values assigned by the BIOS. Note: Each BIOS manufacturer uses different methods of identifying the UDT. Newer BIOS’ from all manufacturer’s will usually include an entry called “User” or “User 1.
INSTALLATION 9 System Hangs During Boot If the system hangs during the boot process after installing the Maxtor hard drive – either before or after setting the system BIOS – the system many have a BIOS with a cylinder limitation. This may occur for hard drives that exceed 2.1 GB. If this happens, do the following: 1 Turn the system OFF. 2 Install the cylinder limitation jumper (J46) on the drive.
AT INTERFACE DESCRIPTION SECTION 5 AT Interface Description Interface Connector All DiamondMax™ 4320 AT drives have a 40-pin ATA interface connector mounted on the PCBA. The drive may connect directly to the host; or it can also accommodate a cable connection (max cable length: 18 inches).
AT INTERFACE DESCRIPTION Pin Description Table P IN N A M E P IN I/ O RESET - 01 I DD0 17 I/O DD1 15 I/O DD2 13 I/O DD3 11 I/O DD4 09 I/O DD5 07 I/O DD6 05 I/O DD7 03 I/O DD8 04 I/O I/O DD9 06 DD10 08 I/O DD11 10 I/O S IG N A L N A M E SIGNAL DESCRIPTION Host Reset Reset signal from the host system. Active during power up and inactive after. H o st D at a B u s 16 bit bi-directional data bus between host and drive.
AT INTERFACE DESCRIPTION PIO Timing TIMING PARAMETERS M ODE 0 M ODE 1 M ODE 2 M ODE 3 M ODE 4 120 ns t0 Cycle Time (min) 60 0 ns 383 ns 240 ns 180 ns t1 Address valid to DIOR-/DIOW- setup (min) 70 ns 50 ns 30 ns 30 ns 25 ns t2 DIOR-/DIOW- 16-bit (min) 165 ns 125 ns 100 ns 80 ns 70 ns 70 ns 25 ns 45 ns 30 ns 30 ns 20 ns t2 i DIOR-/DIOW- recover y time (min) t3 DIOW- data setup (min) 60 ns t4 DIOW- data hold (min) 30 ns 20 ns 15 ns 10 ns 10 ns t5 DIOR- data setup
AT INTERFACE DESCRIPTION DMA Timing TIMING PARAMETERS t0 Cycle Time (min) tC DMACK to DMARQ delay M ODE 0 M ODE 1 M ODE 2 480 ns 150 ns 120 ns 70 ns tD DIOR-/DIOW- (min) 215 ns 80 ns tE D IO R - d a t a a c c e s s (m in ) 150 ns 60 ns tF D IO R - d a t a h o ld (m in ) 5 ns 5 ns 5 ns tG DIOR-/DIOW- data setup (min) 100 ns 30 ns 20 ns 10 ns tH DIOW- data hold (min) 20 ns 15 ns tI DMACK to DIOR-/DIOW- setup (min) 0 0 0 tJ DIOR-/DIOW- to DMACK hold (min) 20 ns 5 ns 5
AT INTERFACE DESCRIPTION Ultra DMA Timing TIMING PARAMETERS ( a l l t i m es i n n a n o seco n d s) M ODE 0 M IN M AX M ODE 1 M IN M AX M ODE 2 M IN M AX tCYC Cycle Time (from STROBE edge to STROBE edge) 114 75 55 t2CYC Two cycle time (from rising edge to next rising edge or from falling edge to next falling edge of STROBE) 235 156 117 t DS Data setup time (at recipient) 15 10 7 t DH D a t a h o ld t im e (a t r e c ip ie n t ) 5 5 5 tDVS Data valid setup time at sender (time f
AT INTERFACE DESCRIPTION t2CYC tCYC tCYC t2CYC DSTROBE at device tDVH tDVS tDVH tDVS tDVH DD(15:0) at device DSTROBE at host tDH tDS tDH tDS DD(15:0) at host Figure 5 - 5 Sustained Ultra DMA Data In Burst DMARQ (device) DMACK(host) tRP STOP (host) tSR HDMARDY(host) tRFS DSTROBE (device) DD(15:0) (device) Figure 5 - 6 Host Pausing an Ultra DMA Data In Burst 5–6 tDH
AT INTERFACE DESCRIPTION DMARQ (device) tMLI DMACK(host) tACK tLI tLI STOP (host) tACK tLI HDMARDY(host) tSS tIORDYZ DSTROBE (device) tZAH tAZ tDVS DD(15:0) tDVH CRC tACK DA0, DA1, DA2, CS0-, CS1- Figure 5 - 7 Device Terminating an Ultra DMA Data In Burst DMARQ (device) tLI tMLI DMACK(host) tZAH tAZ tRP tACK STOP (host) tACK HDMARDY(host) tRFS tLI tMLI tIORDYZ DSTROBE (device) tDVS DD(15:0) tDVH CRC tACK DA0, DA1, DA2, CS0-, CS1- Figure 5 - 8 Host Terminating an Ultra DMA Data In
AT INTERFACE DESCRIPTION DMARQ (device) tUI DMACK(host) tACK tENV STOP (host) tZIORDY tLI tUI DDMARDY(device) tACK HSTROBE (host) tDVS tDVH DD(15:0) (host) tACK DA0, DA1, DA2, CS0-, CS1- Figure 5 - 9 Initiating an Ultra DMA Data Out Burst t2CYC tCYC tCYC t2CYC HSTROBE at host tDVH tDVS tDVH tDVS tDVH DD(15:0) at host HSTROBE at device tDH tDS tDH tDS DD(15:0) at device Figure 5 - 10 Sustained Ultra DMA Data Out Burst 5–8 tDH
AT INTERFACE DESCRIPTION tRP DMARQ (device) DMACK(host) STOP (host) tSR DDMARDY(device) tRFS HSTROBE (host) DD(15:0) (host) Figure 5 - 11 Device Pausing an Ultra DMA Data Out Burst tLI DMARQ (device) tMLI DMACK(host) tLI tSS tACK STOP (host) tLI tIORDYZ DDMARDY(device) tACK HSTROBE (host) tDVS DD(15:0) (host) tDVH CRC tACK DA0, DA1, DA2, CS0-, CS1- Figure 5 - 12 Host Terminating an Ultra DMA Data Out Burst 5–9
AT INTERFACE DESCRIPTION DMARQ (device) DMACK(host) tLI tMLI tACK STOP (host) tRP tIORDYZ DDMARDY(device) tRFS tLI tMLI tACK HSTROBE (host) tDVS DD(15:0) (host) tDVH CRC tACK DA0, DA1, DA2, CS0-, CS1- Figure 5 - 13 Device Terminating an Ultra DMA Data Out Burst 5 – 10
HOST SOFTWARE INTERFACE SECTION 6 Host Software Interface The host communicates with the drive through a set of controller registers accessed via the host’s I/O ports. These registers divide into two groups: the Task File, used for passing commands and command parameters and the Control/Diagnostic registers. Task File Registers The Task File consists of eight registers used to control fixed disk operations.
HOST SOFTWARE INTERFACE Sector Count Register Holds the number of sectors to be sent during a Read or Write command, and the number of sectors per track during a Format command. A value of zero in this register implies a transfer of 256 sectors. A multisector operation decrements the Sector Count register. If an error occurs during such an operation, this register contains the remaining number of sectors to be transferred. Sector Number Register Holds the starting sector number for any disk operation.
HOST SOFTWARE INTERFACE Command Register Contains code for the command to be performed. Additional command information should be written to the task file before the Command register is loaded. When this register is written, the BUSY bit in the Status register sets, and interrupt request to the host clears; invalid commands abort. (Detailed information on interface commands is given in Section 7.
HOST SOFTWARE INTERFACE Summary COM M AND NAM E PARAMETERS USED b7 b6 b5 b4 b3 b2 b1 b0 F SC SN C SDH Recalibrate 0 0 0 1 x x x x N N N N D Read Sector(s) 0 0 1 0 0 0 L x N Y Y Y Y Read DMA 1 1 0 0 1 0 0 x N Y Y Y Y Write Sector(s) 0 0 1 1 0 0 L x N Y Y Y Y Write DMA 1 1 0 0 1 0 1 x N Y Y Y Y Write Verify Sector(s) 0 0 1 1 1 1 0 0 N Y Y Y Y Read Verify Sector(s) 0 1 0 0 0 0 0 x N Y Y Y Y Format
HOST SOFTWARE INTERFACE Control Diagnostic Registers These I/O port addresses reference three Control/Diagnostic registers: I/ O PORT REA D W R IT E 3F6h Alternate Status Fixed Disk Control 3F7h D ig it a l In p u t N o t u se d Alternate Status Register Contains the same information as the Status register in the Task File. However, this register may be read at any time without clearing a pending interrupt.
HOST SOFTWARE INTERFACE Reset and Interrupt Handling Reset Handling One of three different conditions may cause a reset: power on, hardware reset or software reset. All three cause the interface processor to initialize itself and the Task File registers of the interface. A reset also causes a set of the Busy bit in the Status register. The Busy bit does not clear until the reset clears and the drive completes initialization. Completion of a reset operation does not generate a host interrupt.
INTERFACE COMMANDS SECTION 7 Interface Commands The following section describes the commands (and any parameters necessary to execute them), as well as Status and Error register bits affected.
INTERFACE COMMANDS Read Commands Read Sector(s) Reads from 1 to 256 sectors, as specified in the Command Block, beginning at the specified sector. (A sector count of 0 requests 256 sectors.) Immediately after the Command register is written, the drive sets the BSY bit and begins execution of the command. If the drive is not already on the desired track, an implied seek is performed. Once at the desired track, the drive searches for the data address mark of the requested sector.
INTERFACE COMMANDS Read DMA Multi-word DMA Identical to the Read Sector(s) command, except that 1. The host initializes a slave-DMA channel prior to issuing the command, 2. Data transfers are qualified by DMARQ and are performed by the slave-DMA channel and 3. The drive issues only one interrupt per command to indicate that data transfer has terminated and status is available.
INTERFACE COMMANDS Set Multiple Mode Enables the controller to perform Read and Write Multiple operations, and establishes the block count for these commands. Before issuing this command, the Sector Count register should be loaded with the number of sectors per block. The drives support block sizes of 2, 4, 8 and 16 sectors. When this command is received, the controller sets BSY and examines the Sector Count register contents.
INTERFACE COMMANDS Write Multiple Performs similarly to the Write Sector(s) command, except that: 1. The controller sets BSY immediately upon receipt of the command, 2. Data transfers are multiple sector blocks and 3. The Long bit and Retry bit is not valid. Command execution differs from Write Sector(s) because: 1. Several sectors transfer to the host as a block without intervening interrupts. 2. DRQ qualification of the transfer is required at the start of the block, not on each sector.
INTERFACE COMMANDS Set Feature Commands Set Features Mode Enables or disables features supported by the drive. When the drive receives this command it: 1. 2. 3. 4. Sets BSY, Checks the contents of the Features register, Clears BSY and Generates an interrupt. If the value of the register is not a feature supported by the drive, the command is aborted.
INTERFACE COMMANDS Power Mode Commands Standby Immediate – 94h/E0h Spin down and do not change time out value. This command will spin the drive down and cause the drive to enter the STANDBY MODE immediately. If the drive is already spun down, the spin down sequence is not executed. Idle Immediate – 95h/E1h Spin up and do not change time out value. This command will spin up the spin motor if the drive is spun down, and cause the drive to enter the IDLE MODE immediately.
INTERFACE COMMANDS When enabling the Automatic Power Down sequence, the value placed in the Sector Count register is multiplied by five seconds to obtain the Time-out Interval value. If no drive commands are received from the host within the Time-out Interval, the drive automatically enters the STANDBY mode. The minimum value is 5 seconds.
INTERFACE COMMANDS Initialization Commands Identify Drive Allows the host to receive parameter information from the drive. When the command is received, the drive: 1. 2. 3. 4. Sets BSY, Stores the required parameter information in the sector buffer, Sets the DRQ bit and Generates an interrupt. The host may then read the information out of the sector buffer. Parameter words in the buffer follow. Note that all reserved bits or words should be zeroes.
INTERFACE COMMANDS WO RD 50 51 C O N T E N T D E S C R IP T IO N Re s e r ve d 15-8 = PIO dat a transfer mode 7-0 = not used 52 15-8 = DMA dat a transfer mode 7-0 = not used 53 15 = reser ved 2 , 1 = t h e f i e l d s s u p p o r t e d i n w o r d s 8 8 a r e va l i d , 0 = t h e f i e l d s s u p p o r t e d i n w o r d s 8 8 a r e n o t va l i d 1 , 1 = t h e f i e l d s r e p o r t s i n w o r d s 6 4 - 7 0 a r e va l i d , 0 = t h e f i e l d s r e p o r t s i n w o r d s 6 4 - 7 0 a r e n o t va l i
INTERFACE COMMANDS WO R D 83 C O N T E N T D E S C R IP T IO N Command sets supported. If words 82, 83 and 84 = 0000h or FFFFh command set notification not s u p p o rte d . 15 = shall be cleared to zero 14 = shall be set to one 13-1 = reser ved 0, 1 = supports Download Microcode command 84 85 86 87 88 Command set extensions supported. If words 84, 85 and 86 = 0000h or FFFFh command set n o t if ic a t io n n o t s u p p o r t e d .
INTERFACE COMMANDS Initialize Drive Parameters Enables the drive to operate as any logical drive type. The drive will always be in the translate mode because of Zone Density Recording, which varies the number of sectors per track depending on the zone. Through setting the Sector Count Register and Drive Head Register, this command lets the host alter the drive's logical configuration. As a result, the drive can operate as any equal to or less than capacity drive type.
INTERFACE COMMANDS Seek, Format and Diagnostic Commands Seek Initiates a seek to the track, and selects the head specified in the Command block. 1. 2. 3. 4. Sets BSY in the Status register, Initiates the Seek, Resets BSY and Generates an interrupt. The drive does not wait for the seek to complete before returning the interrupt. If a new command is issued to a drive during the execution of a Seek command, the drive will wait (with BSY active) for the Seek to complete before executing the new command.
INTERFACE COMMANDS S.M.A.R.T. Command Set Execute S.M.A.R.T. The Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.) command has been implemented to improve the data integrity and data availability of hard disk drives. In some cases, a S.M.A.R.T. capable device will predict an impending failure with sufficient time to allow users to backup their data and replace the drive before data loss or loss of service. The S.M.A.R.T. sub-commands (listed below) comprise the ATA S.M.A.R.T.
SERVICE AND SUPPORT SECTION 8 Service and Support Service Policy Repairs to any DiamondMax™ 4320 drive should be made only at an authorized Maxtor repair facility. Any unauthorized repairs or adjustments to the drive void the warranty. To consistently provide our customers with the best possible products and services, Maxtor developed the Total Customer Satisfaction (TCS) program.
SERVICE AND SUPPORT MaxFax™ Service Use a touch-tone phone to order Technical Reference Sheets, Drive Specifications, Installation Sheets and other documents from our 24-hour automated fax retrieval system. Requested items are sent to your fax machine. U.S. and Canada Phone Outside U.S.
GLOSSARY GLOSSARY Glossary A ACCESS To obtain data from, or place data into, RAM, a register, or data storage device. ACCESS TIME The interval between the issuing of an access command and the instant that the target data may be read or written. Access time includes seek time, latency and controller overheadtime. ADDRESS A number, generally binary, distinguishing a specific member of an ordered set of locations.
GLOSSARY CYLINDER On several disk surfaces sharing a common rotational axis, the aggregate of tracks at a given radial position. A set of disk tracks that are simultaneously under the set of read/ write heads. This three-dimensional storage volume can be accessed after a single seek. DISK A flat, circular piece of metal (usually aluminum) or plastic (usually mylar) with a magnetic coating upon which information can be recorded.
GLOSSARY FILE ALLOCATION TABLE (FAT) Allocates space on the disk for files, one cluster at a time; locks out unusable clusters; identifies unused (free) area; and lists a file’s location. With two FAT’s present, the second copy ensures consistency and protects against loss of data if one of the sectors on the first FAT is damaged. FLUX CHANGES PER INCH Synonymous with frpi (flux reversals per inch). Only in MFM recording does 1 fci equal 1 bpi (bit per inch).
GLOSSARY LOGICAL ADDRESS A storage location address that may not relate directly to a physical location. Usually used to request information from a controller, which performs a logical to physical address conversion, and in turn, retrieves the data from a physical location in the mass storage peripheral. OPEN LOOP SERVO A head positioning system that does not use positional information to verify and correct the radial location of the head relative to the track.
GLOSSARY R RANDOM ACCESS MEMORY (RAM) Memory designed so that any storage location can be accessed randomly, directly and individually. This is contrasted to sequential access devices such as tape drives. READ To access a storage location and obtain previously recorded data. To sense the presence of flux reversals on magnetic media. Usually implemented such that a dynamic flux amplitude will cause a proportional electrical output from the transducer.
GLOSSARY T THIN-FILM HEAD A magnetic transducer manufactured by deposition of magnetic and electrical materials on a base material contrasted with prior art mechanical methods. Read/write heads whose read/write element is deposited using integrated circuit techniques rather than being manually wound. THIN-FILM MEDIA See plated thin film media. TRACK One surface of a cylinder. A path which contains reproducible information left on a magnetic medium by recording means energized from a single channel.
M A X TO R C O R P O R AT I O N 5 1 0 C OT TO N WO O D D R I V E M I L P I TA S , C A L I F O R N I A 9 5 0 3 5
