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C141-E088-01EN
MHJ2181AT, MHK2120AT,
MHK2090AT, MHK2060AT
DISK DRIVES
PRODUCT MANUAL
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FOR SAFE OPERATION Handling of This Manual This manual contains important information for using this product. Read thoroughly before using the product. Use this product only after thoroughly reading and understanding especially the section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully. FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering damage to their property. Use the product according to this manual. IMPOR
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Revision History (1/1) Edition Date Revised section (*1) Details (Added/Deleted/Altered) 01 1999-07-20 — — *1 Section(s) with asterisk (*) refer to the previous edition when those were deleted. C141-E088-01EN
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Preface This manual describes the MHJ Series and MHK Series, 2.5-inch hard disk drives. These drives have a built-in controller that is compatible with the ATA interface. This manual describes the specifications and functions of the drives and explains in detail how to incorporate the drives into user systems. This manual assumes that the reader has a basic knowledge of hard disk drives and their implementations in computer systems. This manual consists of seven chapters and sections explaining
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Preface Conventions for Alert Messages This manual uses the following conventions to show the alert messages. An alert message consists of an alert signal and alert statements. The alert signal consists of an alert symbol and a signal word or just a signal word. The following are the alert signals and their meanings: This indicates a hazarous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. This alert signal also indicates that
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Preface Liability Exception “Disk drive defects” refers to defects that involve adjustment, repair, or replacement. Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or mishandling, inappropriate operating environments, defects in the power supply or cable, problems of the host system, or other causes outside the disk drive. C141-E088-01EN iii
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Important Alert Items Important Alert Messages The important alert messages in this manual are as follows: A hazardous situation could result in minor or moderate personal injury if the user does not perform the procedure correctly. Also, damage to the predate or other property, may occur if the user does not perform the procedure correctly. Task Alert message Page Normal Operation Data corruption: Avoid mounting the disk near strong 3-8 magnetic soures such as loud speakers. Ensure that the
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Manual Organization MHJ2181AT, MHK2120AT, • Device Overview MHK2090AT, MHK2060AT • Device Configuration • Installation Conditions DISK DRIVES • Theory of Device Operation PRODUCT MANUAL • Interface (C141-E088) • Operations MHJ2181AT, MHK2120AT, • Maintenance and Diagnosis MHK2090AT, MHK2060AT • Removal and Replacement Procedure DISK DRIVES MAINTENANCE MANUAL (C141-F038) C141-E088-01EN vii
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Contents CHAPTER 1 Device Overview........................................................................ 1-1 1.1 Features 1-2 1.1.1 Functions and performance 1-2 1.1.2 Adaptability 1-2 1.1.3 Interface 1-3 1.2 Device Specifications 1-4 1.2.1 Specifications summary 1-4 1.2.2 Model and product number 1-5 1.3 Power Requirements 1-5 1.4 Environmental Specifications 1-7 1.5 Acoustic Noise 1-8 1.6 Shock and Vibration 1-8 1.7 Reliability 1-9 1.8 Error Ra
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Contents CHAPTER 3 Installation Conditions..............................................................3-1 3.1 Dimensions 3-2 3.2 Mounting 3-4 3.3 Cable Connections 3-9 3.3.1 Device connector 3-9 3.3.2 Cable connector specifications 3-10 3.3.3 Device connection 3-10 3.3.4 Power supply connector (CN1) 3-11 3.4 Jumper Settings 3-11 3.4.1 Location of setting jumpers 3-11 3.4.2 Factory default setting 3-12 3.4.3 Master drive-slave drive setting 3-12 3.4.4
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Contents 4.6.1 Read/write preamplifier (PreAMP) 4-9 4.6.2 Write circuit 4-10 4.6.3 Read circuit 4-12 4.6.4 Digital PLL circuit 4-13 4.7 Servo Control 4-14 4.7.1 Servo control circuit 4-14 4.7.2 Data-surface servo format 4-18 4.7.3 Servo frame format 4-18 4.7.4 Actuator motor control 4-19 4.7.5 Spindle motor control 4-20 CHAPTER 5 Interface ..................................................................................... 5-1 5.1 Physical Interface 5
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Contents 5.5.2 Phases of operation 5-87 5.5.2.1 Ultra DMA burst initiation phase 5-87 5.5.2.2 Data transfer phase 5-88 5.5.2.3 Ultra DMA burst termination phase 5-88 5.5.3 Ultra DMA data in commands 5-89 5.5.3.1 Initiating an Ultra DMA data in burst 5-89 5.5.3.2 The data in transfer 5-90 5.5.3.3 Pausing an Ultra DMA data in burst 5-90 5.5.3.4 Terminating an Ultra DMA data in burst 5-91 5.5.4 Ultra DMA data out commands 5-94 5.5.4.1 Initiating an Ultra DMA
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Contents CHAPTER 6 Operations ................................................................................. 6-1 6.1 Device Response to the Reset 6-2 6.1.1 Response to power-on 6-2 6.1.2 Response to hardware reset 6-4 6.1.3 Response to software reset 6-5 6.1.4 Response to diagnostic command 6-6 6.2 Address Translation 6-7 6.2.1 Default parameters 6-7 6.2.2 Logical address 6-8 6.3 Power Save 6-9 6.3.1 Power save mode 6-9 6.3.2 Power commands 6-11 6.4
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Contents Illustrations Figures Figure 1.1 Current fluctuation (Typ.) at +5V when power is turned on 1-6 Figure 2.1 Disk drive outerview (the MHJ Series and MHK Series) 2-2 Figure 2.2 Configuration of disk media heads 2-3 Figure 2.3 1 drive system configuration 2-4 Figure 2.4 2 drives configuration 2-4 Figure 3.1 Dimensions (MHJ/MHK series) 3-2 Figure 3.2 Orientation (Sample: MHJ2181AT) 3-4 Figure 3.3 Mounting frame structure 3-5 Figure 3.4 Location of breather
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Contents Figure 5.4 Protocol for command abort 5-81 Figure 5.5 WRITE SECTOR(S) command protocol 5-82 Figure 5.6 Protocol for the command execution without data transfer 5- 84 Figure 5.7 Normal DMA data transfer 5-85 Figure 5.8 An example of generation of parallel CRC 5-99 Figure 5.9 Ultra DMA termination with pull-up or pull-down 5-100 Figure 5.10 Data transfer timing 5-102 Figure 5.11 Multiword DMA data transfer timing (mode 2) 5-103 Figure 5.12 Starting of Ultra
