CONTENTS
page
CHAPTER 1
DEVICE OVERVIEW ................................................................................... 1 - 1
1.1
Features .......................................................................................................................... 1 - 1
1.1.1
Functions and performance ............................................................................................ 1 - 1
1.1.2
Adaptability .................................................................................................................... 1 - 2
1.1.3
Interface.......................................................................................................................... 1 - 2
1.2
Device Specifications ..................................................................................................... 1 - 4
1.2.1
Specifications summary.................................................................................................. 1 - 4
1.6
1.7
1.8
1.9
1.2.2
Model and product number ............................................................................................ 1 - 5
1.3
Power Requirements....................................................................................................... 1 - 5
1.4
1.5
Environmental Specifications ......................................................................................... 1 - 8
Acoustic Noise ............................................................................................................... 1 - 8
Shock and Vibration ....................................................................................................... 1 - 9
Reliability ....................................................................................................................... 1 - 9
Error Rate ....................................................................................................................... 1 - 10
Media Defects................................................................................................................. 1 - 10
CHAPTER 2
DEVICE CONFIGURATION ....................................................................... 2 - 1
2.1
Device Configuration ..................................................................................................... 2 - 1
2.2
System Configuration..................................................................................................... 2 - 3
2.2.1
ATA interface ................................................................................................................. 2 - 3
2.2.2
1 drive connection .......................................................................................................... 2 - 3
2.2.3
2 drives connection......................................................................................................... 2 - 3
CHAPTER 3
INSTALLATION CONDITIONS ................................................................. 3 - 1
3.1
Dimensions..................................................................................................................... 3 - 1
3.2
3.3
Mounting ........................................................................................................................ 3 - 3
Cable Connections.......................................................................................................... 3 - 7
3.3.1
Device connector ............................................................................................................ 3 - 7
3.3.2
Cable connector specifications ....................................................................................... 3 - 8
3.3.3
Device connection .......................................................................................................... 3 - 8
3.3.4
Power supply connector (CN1) ...................................................................................... 3 - 9
3.3.5
System configuration for Ultra DMA ............................................................................. 3 - 9
C141-E090-01EN vii
3.4
Jumper Settings .............................................................................................................. 3 - 12
3.4.1
Location of setting jumpers ............................................................................................ 3 - 12
3.4.2
Factory default setting .................................................................................................... 3 - 13
3.4.3
Jumper configuration...................................................................................................... 3 - 13
CHAPTER 4
THEORY OF DEVICE OPERATION ......................................................... 4 - 1
4.1
Outline............................................................................................................................ 4 - 1
4.2
Subassemblies ................................................................................................................ 4 - 1
4.2.1
Disk ................................................................................................................................ 4 - 1
4.2.2
Head ............................................................................................................................... 4 - 2
4.2.3
Spindle............................................................................................................................ 4 - 2
4.2.4
Actuator .......................................................................................................................... 4 - 2
4.2.5
Air filter .......................................................................................................................... 4 - 3
4.3
4.4
Circuit Configuration...................................................................................................... 4 - 4
Power-on Sequence ........................................................................................................ 4 - 6
4.5
Self-calibration ............................................................................................................... 4 - 8
4.5.1
Self-calibration contents ................................................................................................. 4 - 8
4.5.2
Execution timing of self-calibration ............................................................................... 4 - 9
4.5.3
Command processing during self-calibration ................................................................. 4 - 9
4.6
Read/write Circuit........................................................................................................... 4 - 10
4.6.1
Read/write preamplifier (PreAMP)................................................................................. 4 - 10
4.6.2
Write circuit.................................................................................................................... 4 - 10
4.6.3
Read circuit..................................................................................................................... 4 - 11
4.6.4
Synthesizer circuit .......................................................................................................... 4 - 12
4.7
Servo Control ................................................................................................................. 4 - 12
4.7.1
Servo control circuit ....................................................................................................... 4 - 13
4.7.2
Data-surface servo format............................................................................................... 4 - 16
4.7.3
Servo frame format ......................................................................................................... 4 - 16
4.7.4
Actuator motor control ................................................................................................... 4 - 18
4.7.5
Spindle motor control ..................................................................................................... 4 - 19
CHAPTER 5
INTERFACE ................................................................................................... 5 - 1
5.1
Physical Interface ........................................................................................................... 5 - 2
5.1.1
Interface signals.............................................................................................................. 5 - 2
5.1.2
Signal assignment on the connector ............................................................................... 5 - 3
5.2
Logical Interface............................................................................................................. 5 - 6 viii C141-E090-01EN
5.2.1
I/O registers .................................................................................................................... 5 - 6
5.2.2
Command block registers ............................................................................................... 5 - 8
5.2.3
Control block registers ................................................................................................... 5 - 13
5.3
Host Commands ............................................................................................................. 5 - 13
5.3.1
Command code and parameters...................................................................................... 5 - 14
5.3.2
Command descriptions ................................................................................................... 5 - 16
5.3.3
Error posting................................................................................................................... 5 - 66
5.4
Command Protocol......................................................................................................... 5 - 67
5.4.1
Data transferring commands from device to host ........................................................... 5 - 67
5.4.2
Data transferring commands from host to device ........................................................... 5 - 69
5.4.3
Commands without data transfer .................................................................................... 5 - 71
5.4.4
Other commands............................................................................................................. 5 - 72
5.4.5
DMA data transfer commands........................................................................................ 5 - 72
5.5
Ultra DMA feature set .................................................................................................... 5 - 74
5.5.1
Overview ........................................................................................................................ 5 - 74
5.5.2
Phases of operation......................................................................................................... 5 - 75
5.5.3
Ultra DMA data in commands........................................................................................ 5 - 75
5.5.3.1 Initiating an Ultra DMA data in burst............................................................................. 5 - 75
5.5.3.2 The data in transfer ......................................................................................................... 5 - 76
5.5.3.3 Pausing an Ultra DMA data in burst............................................................................... 5 - 76
5.5.3.4 Terminating an Ultra DMA data in burst........................................................................ 5 - 77
5.5.4 Ultra DMA data out commands...................................................................................... 5 - 79
5.5.4.1 Initiating an Ultra DMA data out burst........................................................................... 5 - 79
5.5.4.2 The data out transfer ....................................................................................................... 5 - 80
5.5.4.3 Pausing an Ultra DMA data out burst............................................................................. 5 - 80
5.5.4.4 Terminating an Ultra DMA data out burst...................................................................... 5 - 81
5.5.5 Ultra DMA CRC rules .................................................................................................... 5 - 83
5.5.6 Series termination required for Ultra DMA .................................................................... 5 - 84
5.6 Timing ............................................................................................................................ 5 - 85
5.6.1 PIO data transfer ............................................................................................................. 5 - 85
5.6.2 Multiword data transfer .................................................................................................. 5 - 86
5.6.3 Ultra DMA data transfer ................................................................................................. 5 - 87
5.6.3.1 Initiating an Ultra DMA data in burst............................................................................. 5 - 87
5.6.3.2 Ultra DMA data burst timing requirements .................................................................... 5 - 88
5.6.3.3 Sustained Ultra DMA data in burst................................................................................. 5 - 90
5.6.3.4 Host pausing an Ultra DMA data in burst ...................................................................... 5 - 91
C141-E090-01EN ix
5.6.3.5 Device terminating an Ultra DMA data in burst ............................................................. 5 - 92
5.6.3.6 Host terminating an Ultra DMA data in burst................................................................. 5 - 93
5.6.3.7 Initiating an Ultra DMA data out burst........................................................................... 5 - 94
5.6.3.8 Sustained Ultra DMA data out burst............................................................................... 5 - 95
5.6.3.9 Device pausing an Ultra DMA data out burst................................................................. 5 - 96
5.6.3.10 Host terminating an Ultra DMA data out burst............................................................... 5 - 97
5.6.3.11 Device terminating an Ultra DMA data in burst ............................................................. 5 - 98
5.6.4 Power-on and reset ......................................................................................................... 5 - 99
CHAPTER 6
OPERATIONS ................................................................................................ 6 - 1
6.1 Device Response to the Reset......................................................................................... 6 - 1
6.1.1 Response to power-on .................................................................................................... 6 - 2
6.1.2 Response to hardware reset ............................................................................................ 6 - 3
6.1.3 Response to software reset.............................................................................................. 6 - 4
6.1.4 Response to diagnostic command .................................................................................. 6 - 5
6.2 Address Translation........................................................................................................ 6 - 6
6.2.1 Default parameters.......................................................................................................... 6 - 6
6.2.2 Logical address............................................................................................................... 6 - 7
6.3 Power Save ..................................................................................................................... 6 - 8
6.3.1 Power save mode............................................................................................................ 6 - 8
6.3.2 Power commands ........................................................................................................... 6 - 10
6.4 Defect Management........................................................................................................ 6 - 10
6.4.1 Spare area ....................................................................................................................... 6 - 11
6.4.2 Alternating defective sectors .......................................................................................... 6 - 11
6.5 Read-Ahead Cache ......................................................................................................... 6 - 13
6.5.1 Data buffer configuration ............................................................................................... 6 - 13
6.5.2 Caching operation........................................................................................................... 6 - 14
6.5.3 Usage of read segment.................................................................................................... 6 - 15
6.6 Write Cache .................................................................................................................... 6 - 20 x C141-E090-01EN
