IBM DBCA-204860 - Travelstar 4.8 GB Hard Drive Скачать руководство пользователя страница 125 | Manualshive

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12.11 Read Buffer (E4h)

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Figure 76. Read Buffer Command (E4h)

The Read Buffer command transfers a sector of data from the sector buffer of device to the host.

The sector is transferred through the Data Register 16 bits at a time.

The sector transferred will be from the same part of the buffer written to by the last Write Buffer command.
The contents of the sector may be different if any reads or writes have occurred since the Write Buffer
command was issued.

Command Descriptions

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Содержание DBCA-204860 - Travelstar 4.8 GB Hard Drive

Страница 1: ...OEM HARD DISK DRIVE SPECIFICATIONS for DBCA 203240 204860 206480 3 2 4 8 6 4 GB 2 5 Inch Hard Disk Drive with ATA Interface Revision 1 0 S25L 2426 02...

Страница 2: ......

Страница 3: ...OEM HARD DISK DRIVE SPECIFICATIONS for DBCA 203240 204860 206480 3 2 4 8 6 4 GB 2 5 Inch Hard Disk Drive with ATA Interface Revision 1 0 S25L 2426 02...

Страница 4: ...t this publication may contain reference to or information about IBM products machines and programs programming or services that are not announced in your country Such references or infor mation must...

Страница 5: ...pment Status 15 4 4 WRITE Safety 16 4 5 Data buffer test 16 4 6 Error Recovery 16 4 7 Automatic Reallocation 16 4 7 1 Non Recovered Write Errors 16 4 7 2 Non Recovered Read Errors 16 4 7 3 Recovered R...

Страница 6: ...e Specifications 33 6 1 Cabling 33 6 2 Interface Connector 33 6 2 1 Signal Definition 34 6 3 Interface Logic Signal Levels 37 6 4 Reset timings 38 6 5 PIO Timings 39 6 5 1 DMA Timings Single Word 40 6...

Страница 7: ...wer Idle mode 72 10 5 4 Transition Time 72 10 6 S M A R T Function 74 10 6 1 Attributes 74 10 6 2 Attribute values 74 10 6 3 Attribute thresholds 74 10 6 4 Threshold exceeded condition 74 10 6 5 S M A...

Страница 8: ...2 21 Security Erase Unit F4h 133 12 22 Security Freeze Lock F5h 135 12 23 Security Set Password F1h 136 12 24 Security Unlock F2h 138 12 25 Seek 7xh 140 12 26 Set Features EFh 141 12 27 Set Max Addres...

Страница 9: ...64 x 1 024 bytes Mb sq in 1 000 000 bits per square inch MLC Machine Level Control DFT Drive Fitness Test TBD To Be Defined 1 2 General Caution Do not apply pressing force on the top cover See Figure...

Страница 10: ...1 2 1 Caution of usage Figure 1 Handling caution of DBCA 203240 204860 206480 2 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 11: ...Figure 2 Breathing hole caution of DBCA 203240 204860 206480 General 3...

Страница 12: ...4 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 13: ...de 2 Media data transfer rate 118 0 outer zone 69 0 inner zone Mbit sec Average seek time 13 milliseconds for read Closed loop actuator servo Embedded Sector Servo Rotary voice coil motor actuator Loa...

Страница 14: ...6 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 15: ...Part 1 Functional Specification Copyright IBM Corp 1998 7...

Страница 16: ...8 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 17: ...Data Sectors 6 354 432 9 514 260 12 685 680 Total Customer Usable Data Bytes 3250 MB 3 253 469 184 4870 MB 4 871 301 120 6490 MB 6 495 068 160 Figure 4 Data Sheet Media transfer rate Mb sec 69 0 118...

Страница 18: ...m when the command is received by the drive to the start of motion of the actuator 3 3 2 Average Seek Time Including Settling Figure 6 Mechanical Positioning Performance Typical and Max are given thro...

Страница 19: ...d seek time for a n track seek 3 3 3 Single Track Seek Time Figure 7 Single Track Seek Time The single track seek time includes settling time but does not include command overhead Single track seek is...

Страница 20: ...in which the drive is able to perform a media access command e g read write immediately Power On This includes the time required for the internal self diagnostics Condition Typical Max Power On To Re...

Страница 21: ...n power saving mode The head is parked near the mid diameter of disk without servoing A device in Active idle mode may take longer to complete the execution of a command because it has to activate tha...

Страница 22: ...r power on or hard reset as an initial state Initial state may be changed to Standby mode using pin C on the interface connector Refer to 6 6 Drive Address Setting on page 50 for detail 3 3 7 3 Adapti...

Страница 23: ...loss To confirm successful completion of Software Reset To confirm successful completion of Flush Cache command To confirm successful completion of Check Power Mode command To confirm successful compl...

Страница 24: ...llocation to the host system The conditions for auto reallocation are described below 4 7 1 Non Recovered Write Errors When a write operation can not be completed after the Error Recovery Procedure ER...

Страница 25: ...perating Conditions Temperature 40 to 65 C Relative Humidity 5 to 95 R H Maximum Wet Bulb Temperature 40 C Maximum Temperature Gradient 20 C Hour Altitude 300 to 12 000 m Note The system has to provid...

Страница 26: ...s at the enclosure surface Figure 15 Magnetic Flux Density Limits 5 1 2 2 Conductive Noise The disk drive shall work without degradation of the soft error rate with an AC current of up to 45 mA p p in...

Страница 27: ...k average current is specified based on three operations per 100 msec 6 The typical current wave form at start up is shown in Figure 17 on page 20 Item Requirements Notes Nominal Supply 5 Volt Power S...

Страница 28: ...5 2 1 Start Up Current Figure 17 Typical current wave form at start up 20 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 29: ...ment section 5 3 4 Service Life and Usage Condition The drive is designed to be used under the following conditions Within specifications of Shock Vibration Temperature Humidity Altitude and Magnetic...

Страница 30: ...le Emergency unload is intended to be invoked in rare situations Because this operation is inherently uncon trolled it is more mechanically stressful than a normal unload DBCA 2xxxxx supports a minimu...

Страница 31: ...verify head disk durability In the case of DBCA 2xxxxx the heads do not land on the disk so this type of test should be viewed as a test of the load unload function Start Stop testing should be done b...

Страница 32: ...re 18 Physical Dimension and Weight 5 4 2 Hole Locations The Figure 19 on page 24 shows the outline of DBCA 2xxxxx which includes the hole locations DBCA 203240 DBCA 204860 DBCA 206480 Height mm 9 5 0...

Страница 33: ...which it was formatted Thus a drive formatted in a horizontal orientation will be able to run vertically and vice versa The recommended mounting screw torque is 3 0 0 5 kgf cm The recommended mounting...

Страница 34: ...SD profile Breakpoint 5 Hz 2 0 x E 5 g 2 Hz 17 Hz 1 1 x E 3 45 Hz 1 1 x E 3 48 Hz 8 0 x E 3 62 Hz 8 0 x E 3 65 Hz 1 0 x E 3 150 Hz 1 0 x E 3 200 Hz 5 0 x E 4 500 Hz 5 0 x E 4 The specified levels are...

Страница 35: ...G 2msec half sine shock pulse 10G 11msec half sine shock pulse The input level shall be applied to the normal disk drive subsystem mounting points as mounted in normal system use 5 5 4 Non Operating S...

Страница 36: ...chamber floor No sound absorbing material shall be used The acoustical characteristics of the disk drive are measured under the following conditions Idle mode Power on disks spinning track following u...

Страница 37: ...ound power Lw with following formula only when determining compliance Lwt spec Lw 0 1 Pt 0 3 4 0 Bels where Lw A weighted sound power level Pt Value of discrete tone penalty dLt 6 0 dBA dLt Tone to no...

Страница 38: ...he worldwide EMC requirements listed below IBM will provide technical support to assist users in complying with the EMC requirements United States Federal Communications Commission FCC Rules and Regul...

Страница 39: ...d or etched on the board All other parts not considered electrical components are made of material with a UL recognized flammability rating of V 1 or better except minor mechanical parts 5 9 6 Seconda...

Страница 40: ...32 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 41: ...tor for AT Attachment is designed to mate with Dupont part number 69764 044 or equiv alent Figure 21 and Figure 19 show the connector location and physical pin location Figure 21 AT Attachment connect...

Страница 42: ...4 Resv Figure 22 Table of signals Notes 1 O designates an output from the Drive 2 I designates an input to the Drive 3 I O designates an input output common 4 OD designates Open Drain output 5 The sig...

Страница 43: ...send or receive a 16 bit wide data word This signal is an Open Drain output with 24 mA sink capability and an external resistor is needed to pull this line to 5 volts DASP This is a time multiplexed...

Страница 44: ...into the system power source directly If the host system while the HDD is disconnected from power line shall be isolated by Three State line drivers Internal leakage through ESD protection circuit may...

Страница 45: ...receive Ultra DMA data out transfers The device may negate DDMARDY to pause an Uptra DMA data out transfer DSTROBE Ultra DMA This signal is used only for Ultra DMA data transfers between host and driv...

Страница 46: ...gs HDD reset timing RESET T0 BUSY XXXXXXX T1 PARAMETER DESCRIPTION Min Max usec sec T0 RESET low width 25 T1 RESET high to Not BUSY 9 5 Figure 24 System Reset timing 38 OEM Specifications of DBCA 2xxx...

Страница 47: ...DD00 15 setup to DIOW high 20 T4 DIOW high to DD00 15 hold 10 T5 DD00 15 setup to DIOR high 20 1 T6 DIOR high to DD00 15 hold 5 T6Z DIOR high to DDOO 15 tristate 30 T7 CS0 1 DA00 02 valid to IOCS16 a...

Страница 48: ...PARAMETER DESCRIPTION MIN MAX Note nsec nsec T0 Cycle time 240 TC DMACK active to DMARQ inactive 80 TD DIOR DIOW pulse width 120 TE DIOR data access 60 TF DIOR data hold 5 TG DIOW data setup 35 TH DI...

Страница 49: ...ION MIN MAX Note nsec nsec T0 Cycle time 120 TD DIOR DIOW pulse width 70 TE DIOR data setup 20 TF DIOR data hold 5 TG DIOW data setup 20 TH DIOW data hold 10 TI DMACK to DIOR DIOW setup 0 TJ DIOR DIOW...

Страница 50: ...sec MODE0 MODE1 MODE2 PARAMETER DESCRIPTION MIN MAX MIN MAX MIN MAX Tui Unlimited interlock time 0 0 0 Tack Setup time before DMACK assertion 20 20 20 Tenv Envelope time 20 70 20 70 20 70 Tzrdy Wait t...

Страница 51: ...IPTION MIN MAX MIN MAX MIN MAX Tsr Strobe to ready response time 50 30 20 Trfs Ready to final strobe time 75 60 50 Note When a host does not meet Tsr it should be ready to receive 2 more strobes after...

Страница 52: ...to final strobe time 75 60 50 Trp Ready to pause time 160 125 100 Tli Limited interlock time 0 150 0 150 0 150 Taz Output release time 10 10 10 Tzah Output enable time 20 20 20 Tmli Interlock time 20...

Страница 53: ...IN MAX Tss Time from strobe to stop assertion 50 50 50 Tli Limited interlock time 0 150 0 150 0 150 Taz Output release time 10 10 10 Tzah Output enable time 20 20 20 Tmli Interlock time 20 20 20 Tds D...

Страница 54: ...X MIN MAX Tui Unlimited interlock time 0 0 0 Tack Setup time before DMACK assertion 20 20 20 Tenv Envelope time 20 70 20 70 20 70 Tzrdy Wait time before driving DDMARDY 0 0 0 Tli Limited interlock tim...

Страница 55: ...PTION MIN MAX MIN MAX MIN MAX Tsr Strobe to ready response time 50 30 20 Trfs Ready to final strobe time 75 60 50 Note When a device does not meet Tsr it shall be ready to receive 2 more strobes after...

Страница 56: ...X MIN MAX Trfs Ready to final strobe time 75 60 50 Trp Ready to pause time 160 125 100 Tli Limited interlock time 0 150 0 150 0 150 Tmli Interlock time 20 20 20 Tds Data setup time at device side 15 1...

Страница 57: ...RIPTION MIN MAX MIN MAX MIN MAX Tss Time from strobe to stop assertion 50 50 50 Tli Limited interlock time 0 150 0 150 0 150 Tmli Interlock time 20 20 20 Tds Data setup time at device side 15 10 7 Tdh...

Страница 58: ...the drive address depends on the condition of pin 28 of the AT interface cable In the case when pin 28 is ground or low the drive is a Master If pin 28 is open or high level the drive is a Slave Figu...

Страница 59: ...I O address range for IBM PC AT machines Addr CS0 CS1 HA2 HA1 HA0 HIOR 0 Read HIOW 0 Write Command Block Registers 1F0 0 1 0 0 0 Data Reg Data Reg 1F1 0 1 0 0 1 Error Reg Features Reg 1F2 0 1 0 1 0 S...

Страница 60: ...52 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 61: ...Part 2 ATA Interface Specification Copyright IBM Corp 1998 53...

Страница 62: ...54 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 63: ...scribed in 8 0 Deviations From Standard on page 57 DBCA 2xxxxx support following functions as Vendor Specific Function Address Offset Feature Format Unit Function 7 2 Terminology Device Device indicat...

Страница 64: ...56 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 65: ...s the device will not report threshold exceeded condition unless prefailure attri butes exceed their corresponding thresholds For example Power On Hours Attribute never results in negative reliability...

Страница 66: ...58 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 67: ...h Cylinder High A N 1 0 1 2 LBA bits 16 23 2 LBA bits 16 23 A N 1 1 0 Device Head Device Head A N 1 1 0 2 LBA bits 24 27 2 LBA bits 24 27 A N 1 1 1 Status Command A A x x x Invalid address Invalid add...

Страница 68: ...gister 9 3 Cylinder High Register This register contains the high order bits of the starting cylinder address for any disk access At the end of the command this register is updated to reflect the curr...

Страница 69: ...he host must set R S T 1 and wait for at least 5 microseconds before setting RST 0 to ensure that the device recognizes the reset IEN Interrupt Enable When IEN 0 and the device is selected device inte...

Страница 70: ...s the least significant bit At command completion these bits are updated to reflect the currently selected head The head number may be from zero to the number of heads minus one In LBA mode HS3 throug...

Страница 71: ...ormat Unit command 9 11 Sector Count Register This register contains the number of sectors of data requested to be transferred on a read or write operation between the host and the device If the value...

Страница 72: ...that a seek has completed and the device head is settled over a track DSC is set to 0 by the device just before a seek begins When an error occurs this bit is not changed until the Status Register is...

Страница 73: ...es Hard Reset Hardware Reset RESET signal is negated in ATA Bus The device executes a series of electrical circuitry diagnostics spins up the HDA tests speed and other mechanical parametric and sets d...

Страница 74: ...le Standby timer o o x Power mode 6 4 4 Reset Standby timer value 5 o o x o execute x not execute Figure 45 Reset Response Table Note 1 Execute after the data in write cache has been written 2 Default...

Страница 75: ...r software reset the register values are initialized as shown in Figure 46 Code Description 01h No error detected 02h Formatter device error 03h Sector buffer error 04h ECC circuitry error 05h Control...

Страница 76: ...t DASP is asserted by Device 0 and Device 1 if it is present in order to indicate device active Execute Device Diagnostic If Device 1 is present Device 0 shall read PDIAG to determine when it is valid...

Страница 77: ...by the current CHS translation mode but cannot exceed 65535 0FFFFh When the host selects a CHS translation mode using the INITIALIZE DEVICE PARAMETERS command the host requests the number of sectors...

Страница 78: ...e Active Mode The device is in execution of a command or accessing the disk media with read look ahead function or write cache function 10 4 2 Power Management Commands The Check Power Mode command al...

Страница 79: ...tatus or issue commands to the device 10 4 6 Interface Capability for Power Modes Each power mode affects the physical interface as defined in the following table Mode BSY RDY Interface active Media A...

Страница 80: ...pported if set Word 86 bit 3 indicates that Advanced Power Management is enabled if set Word 96 bits 7 0 contain the current Advanced Power Management level if Advanced Power Management is enabled 10...

Страница 81: ...ending on the users recent behavior It is not possible to achieve the same level of Power savings with a fixed entry time into Active Idle because every users data and access pattern is different The...

Страница 82: ...tes being used and the identity of these attributes is vendor specific and proprietary 10 6 2 Attribute values Attribute values are used to represent the relative reliability of individual performance...

Страница 83: ...eatures the system enable the device s attribute autosave feature to allow the device s automatic attribute saving upon receipt of STANDBY IMMEDIATE or SLEEP commands If the device has been set to uti...

Страница 84: ...ate the device lock function set change password The device enters this mode via a Security Freeze Lock command It cannot quit this mode until power off 10 7 2 Security level Following security levels...

Страница 85: ...m default Master Password using the Security Set Password command without enabling the Device Lock Function 10 7 4 2 User Password setting When a User Password is set the device will automatically ent...

Страница 86: ...media access command 1 command 1 Password Erase Unit Match Password N Match N Y Y Complete Reject Complete Erase Unit V V V V Enter Device Lock function Unlock mode Disable V Normal operation All com...

Страница 87: ...Master Password V Normal operation but data lost Figure 52 Password Lost 10 7 4 5 Attempt limit for SECURITY UNLOCK command The SECURITY UNLOCK command has an attempt limit The purpose of this attemp...

Страница 88: ...DMA w o retry x o o Read DMA w retry x o o Read Long w o retry x o o Read Long w retry x o o Read Multiple x o o Read Native Max Address o o o Read Sector s w o retry x o o Read Sector s w retry x o o...

Страница 89: ...rn Status o o o SMART Save Attribute Values o o o Standby o o o Standby Immediate o o o Write Buffer o o o Write DMA w o retry x o o Write DMA w retry x o o Write Long w o retry x o o Write Long w ret...

Страница 90: ...rea 0FC000h to 0FFFFFh 1 Shipping HDDs from HDD manufacturer When the HDDs are shipped from HDD manufacturer the device has been tested to have a capacity of 536MB flagging the media defects not to be...

Страница 91: ...ax LBA CYL Returned value shows that native device Max LBA is 0FFFFFh regardless of the current setting Make entire device be accessible including the protected area by setting device Max LBA as 0FFFF...

Страница 92: ...ddress Offset Mode offsets address Cylinder 0 Head 0 Sector 1 LBA 0 to the start of the non volatile protected area established using the Set Max Address command The offset condition is cleared by Sub...

Страница 93: ...turned by Read Max Address User Accessible Area LBA 0 LBA M Figure 55 Device address map before and after Set Feature 10 9 2 Identify Device Data Identify Device data word 83 bit 7 indicates the devic...

Страница 94: ...soft reset or hard reset does not affect its operation But power off terminates writing operation immediately and unwritten data are to be lost Flush cache Soft reset and Check Power Mode command are...

Страница 95: ...ecovered write errors When a write operation can not be completed after the Error Recovery Procedure ERP is fully carried out the sector s are reallocated to the spare location An error is reported to...

Страница 96: ...88 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 97: ...ger responding Interrupts are cleared when the host reads the Status Register issues a reset or writes to the Command Register Figure 113 on page 173 shows the device timeout values 11 1 Data In Comma...

Страница 98: ...t BSY 0 ERR 1 and DRQ 1 The device will then store the error status in the Error Register and interrupt the host The registers will contain the location of the sector in error The errored location wil...

Страница 99: ...ady to receive a sector b The host writes one sector of data including ECC bytes via the Data Register c The device sets BSY 1 after it has received the sector d After processing the sector of data th...

Страница 100: ...Immediate SMART Return Status SMART Save Attribute Values Standby Standby Immediate Execution of these commands involves no data transfer 1 The host writes any required parameters to the Features Sect...

Страница 101: ...commands the host resets the DMA channel prior to reading status from the device The DMA protocol allows high performance multi tasking operating systems to eliminate processor over head associated w...

Страница 102: ...94 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 103: ...DMA no retry C9 1 1 0 0 1 0 0 1 1 Read Long retry 22 0 0 1 0 0 0 1 0 1 Read Long no retry 23 0 0 1 0 0 0 1 1 1 Read Multiple C4 1 1 0 0 0 1 0 0 3 Read Native Max Address F8 1 1 1 1 1 0 0 0 1 Read Sec...

Страница 104: ...1 1 0 0 0 1 0 3 Standby 96 1 0 0 1 0 1 1 0 3 Standby Immediate E0 1 1 1 0 0 0 0 0 3 Standby Immediate 94 1 0 0 1 0 1 0 0 2 Write Buffer E8 1 1 1 0 1 0 0 0 4 Write DMA retry CA 1 1 0 0 1 0 1 0 4 Write...

Страница 105: ...t feature EF 05 Enable Address Offset mode EF 09 34 bytes of ECC apply on Read Write Long EF 44 Disable read look ahead feature EF 55 Disable reverting to power on defaults EF 66 Disable write cache E...

Страница 106: ...ion Bit of the Sector Count Register should be specified This bit is used by Set Max Address command V Valid Indicates that the bit is part of an output parameter and should be specified x Indicates t...

Страница 107: ...gister Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 0 0 0 V Figure 59 Check Power Mode Command E5h 98h The Check Power M...

Страница 108: ...Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 V V V V V V V 0 0 0 0 0 Figure 60 Execute Device Diagnostic Command 90h The Execut...

Страница 109: ...vice Head Command 1 1 1 0 0 1 1 1 Status See Below Error Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 V 0 V...

Страница 110: ...a sector of data containing a format table to the device The format table should contain two bytes for each sector on the track to be formatted The structure of format table is shown in Figure 63 on p...

Страница 111: ...ode this command formats a single logical track including the specified LBA Explanation for descriptor Descriptor 00h The sector of data will be initialized to 00h Byte Data Description 0 xxh descript...

Страница 112: ...and new defect information are available right after this command completion and are also used on next power on reset or hard reset Both previous information are erased from the device by this comman...

Страница 113: ...The execution time of this command is shown below DBCA 206480 about 15 min DBCA 204860 about 12 min DBCA 203240 about 8 min Command Descriptions 105...

Страница 114: ...1 D Device Head Command 1 1 1 0 1 1 0 0 Status See Below Error Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V...

Страница 115: ...003FH Number of sectors per track in default translate mode 07 0000H Number of bytes of sector gap 08 0000H Number of bytes in sync field 09 0000H Reserved 10 19 XXXX Serial number in ASCII 0 not spe...

Страница 116: ...he number 62 XX07H Single Word DMA Transfer Capability 15 8 Single word DMA transfer mode active 7 0 7 Single word DMA transfer modes supported support mode 0 1 and 2 63 XX07H Multiword DMA Transfer C...

Страница 117: ...write cache supported 4 0 1 supports PACKET Command Feature Set 3 1 1 supports Power Management Feature Set 2 0 1 supports Removable Media Feature Set 1 1 1 supports Security Feature Set 0 1 1 support...

Страница 118: ...nagement Feature Set enabled 2 0 1 CFA Feature Set supported 1 0 1 READ WRITE DMA QUEUED command supported 0 0 1 DOWNLOAD MICROCODE command supported 87 4000H Command set feature enabled 15 0 Always 1...

Страница 119: ...curity supported 129 000XH Current Set Feature Option Bit assignments 15 4 0 Reserved 3 X 1 Auto reassign enabled 2 X 1 Reverting enabled 1 X 1 Read Look ahead enabled 0 X 1 Write Cache enabled 130 XX...

Страница 120: ...of cylinders 2754h Number of heads 000Fh Model number ASCII IBM DBCA 204860 Total number of user 912D14h addressable sectors DBCA 203240 Number of cylinders 18A0h Number of heads 0010h Model number A...

Страница 121: ...D Device Head Command 1 1 1 0 1 1 1 0 Status See Below Error Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0...

Страница 122: ...parameter standby timer And then the timer starts counting down When the Idle mode is entered the device is spun up to operating speed If the device is already spinning the spin up sequence is not ex...

Страница 123: ...Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 V 0 V Figure 74 Idle Immediate Command E1h 95h The Idle Immed...

Страница 124: ...ce Information reflects these parame ters The parameters remain in effect until the following events Another Initialize Device Parameters command is received The device is powered off Hard reset occur...

Страница 125: ...r 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 0 V Figure 76 Read Buffer Command E4h The Read Buffer command transfers a sector of d...

Страница 126: ...device to the host The sectors are transferred through the Data Register 16 bits at a time The host initializes a slave DMA channel prior to issuing the command The data transfers are qualified by DM...

Страница 127: ...rred This will be zero unless an unre coverable error occurs Sector Number The sector number of the last transferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder Hig...

Страница 128: ...d ECC bytes from the device to the host After 512 bytes of data have been transferred the device will keep setting D R Q 1 to indicate that the device is ready to transfer the ECC bytes to the host Th...

Страница 129: ...nder High Low The cylinder number of the transferred sector L 0 In LBA mode this register contains current LBA bits 8 15 Low 16 23 High L 1 H The head number of the transferred sector L 0 In LBA mode...

Страница 130: ...ctors of data from disk media then transfers the data from the device to the host The sectors are transferred through the Data Register 16 bits at a time Command execution is identical to the Read Sec...

Страница 131: ...f the last transferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder High Low The cylinder number of the last transferred sector L 0 In LBA mode this register contain...

Страница 132: ...s Offset mode is enabled the native max LBA CYL oh HDD is returned Output Parameters To The Device L LBA mode Indicates the addressing mode L 0 specifies CHS mode and L 1 does LBA addressing mode D Th...

Страница 133: ...V Valid Indicates that the bit is part of an input parameter and will be set to 0 or 1 by the device Indicates that the bit is not used Command Descriptions 125...

Страница 134: ...nd reads one or more sectors of data from disk media then transfers the data from the device to the host The sectors are transferred through the Data Register 16 bits at a time If an uncorrectable err...

Страница 135: ...f the last transferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder High Low The cylinder number of the last transferred sector L 0 In LBA mode this register contain...

Страница 136: ...es one or more sectors on the device No data is transferred to the host The difference of Read Sectors command and Read Verify Sectors command is whether the data is trans ferred to the host or not If...

Страница 137: ...the last transferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder High Low The cylinder number of the last transferred sector L 0 In LBA mode this register contains...

Страница 138: ...ce Head 1 1 D Device Head Command 0 0 0 1 Status See Below Error Register Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V V 0 0 V...

Страница 139: ...the host including information specified in Figure 85 Then the device checks the transferred password If the User Password or Master Password matches the given password the device disables the securi...

Страница 140: ...0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 V 0 V Figure 86 Security Erase Prepare Command F3h The Security Erase Prepare Command must be issued immediately before the Security...

Страница 141: ...mmand F4h The Security Erase Unit command initializes all user data sectors then disables the device lock function Note that the Security Erase Unit command initializes from LBA 0 to Native MAX LBA Ho...

Страница 142: ...ommand should be completed immediately prior to the Security Erase Unit command If the device receives a Security Erase Unit command without a prior Security Erase Prepare command the device aborts th...

Страница 143: ...4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 0 V Figure 89 Security Freeze Lock Command F5h The Security Freeze Lock Command allows the device to enter fr...

Страница 144: ...rd Command F1h The Security Set Password command enables security mode feature device lock function and sets the master password or the user password The security mode feature device lock function is...

Страница 145: ...e field is returned in Identify Device word 92 The valid Revision Codes are 0000h to FFFDh Default Master Password Revision Code is FFFEh FFFFh is reserved The setting of the Identifier and Security l...

Страница 146: ...eted the device will be in device lock mode The password has not been changed yet The Security Unlock command requests to transfer a single sector of data from the host including informa tion specifie...

Страница 147: ...indicates that device regards Password as Master Password The user can detect if the attempt to unlock the device has failed due to a mismatched password as this is the only reason that an abort erro...

Страница 148: ...he Seek command initiates a seek to the designated track and selects the designated head The device need not be formatted for a seek to execute properly Output Parameters To The Device Sector Number I...

Страница 149: ...es Command EFh The Set Feature command establishes the following parameters which affect the execution of certain features as shown in below table ABT will be set to 1 in the Error Register if the Fea...

Страница 150: ...ount Register specifies the Advanced Power Management level C0h FEh The deepest Power Saving mode is Active Idle 80h BFh The deepest Power Saving mode is Low power Idle 01h 7Fh The deepest Power Savin...

Страница 151: ...LBA CYL which is set via this command as a default value Read Native Max Address command should be issued and completed immediately prior to issuing Set Max Address command If the device receives Set...

Страница 152: ...cts the master device and D 1 selects the slave device V Valid Indicates that the bit is part of an output parameter and should be specified Indicates that the bit is not used Input Parameters From Th...

Страница 153: ...e Set Multiple command enables the device to perform Read and Write Multiple commands and estab lishes the block size for these commands The block size is the number of sectors to be transferred for e...

Страница 154: ...RQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 V 0 V Figure 98 Sleep Command E6h 99h This command is the only way to cause the device to enter Sleep Mode When this command is issued the device confirms the comp...

Страница 155: ...des access to Attribute Values Attribute Thresholds and other low level subcommands that can be used for logging and reporting purposes and to accommodate special user needs The S M A R T Function Set...

Страница 156: ...save feature either enabled or disabled will be preserved by the device across power cycle A value of 00h written by the host into the device s Sector Count Register before issuing the SMART Enable Di...

Страница 157: ...om plete a segment within its estimated time an issuance of a SMART Read Attribute Values subcommand could abort ongoing off line test In this case the current segment pointer remains unchanged and of...

Страница 158: ...resholds If the device does not detect a Threshold Exceeded Condition or detects a Threshold Exceeded Condition but involving attributes are advisory the device loads 4Fh into the Cylinder Low registe...

Страница 159: ...125 182h 3 Data structure checksum 1 1FFh 2 512 1 See following definitions 2 Value varied by actual operating condition 3 Filled with 00h Figure 100 Device Attribute Data Structure 12 30 2 1 Data St...

Страница 160: ...not to be used Reserved may not be 0 1 04h binary Reserved may not be 0 6 05h binary Reserved 00h 1 0Bh binary Total Bytes 12 Figure 101 Individual Attribute Data Structure 12 30 2 2 1 Attribute ID Nu...

Страница 161: ...Spin Retry Count 12 Device Power Cycle Count 199 CRC Error Count 220 Disk Shift 221 G Sense Error Rate 222 Loaded Hours 223 Load Retry Count 224 Load Friction 225 Load Cycle Count 226 Load in Time 227...

Страница 162: ...rmalized Attribute Value In normalizing the raw data the device will perform any necessary statistical validity checks to ensure that an instantaneous raw value is not improperly reflected in the norm...

Страница 163: ...es to complete the segment pointed by the current segment pointer The host can use this time to set a count down timer that will trigger it to issue the SMART Read Attribute Values subcommand to check...

Страница 164: ...ure Checksum is the 2 s compliment of the result of a simple 8 bit addition of the first 511 bytes in the data structure 12 30 3 Device Attribute Thresholds Data Structure The following defines the 51...

Страница 165: ...Device Attribute Thresholds Data Structure 12 30 3 1 Data Structure Revision Number This value 0005h is the same as the value used in the Device Attributes Values Data Structure 12 30 3 2 Individual...

Страница 166: ...re 104 Individual Threshold Data Structure 12 30 3 3 Attribute ID Numbers Attribute ID Numbers supported by the device are the same as Attribute Values Data Structures 12 30 3 4 Attribute Threshold Th...

Страница 167: ...e Features Register 51h 04h that is either invalid or not supported by this device A S M A R T FUNCTION SET command subcommand other than SMART ENABLE OPERATIONS was received by the 51h 04h device whi...

Страница 168: ...commands before it asserts INTRQ Then the device is spun down but the interface remains active If the device is already spun down the spin down sequence is not executed During the Standby mode the de...

Страница 169: ...RQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 V 0 V Figure 107 Standby Immediate Command E0h 94h The Standby Immediate command causes the device to enter Standby mode immediately When this command is issued th...

Страница 170: ...Status Register 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR 0 0 0 0 0 V 0 0 0 V 0 0 V Figure 108 Write Buffer Command E8h The Write Buffer command transf...

Страница 171: ...host to the device then the data is written to the disk media The sectors of data are transferred through the Data Register 16 bits at a time The host initializes a slave DMA channel prior to issuing...

Страница 172: ...ested sectors not transferred This will be zero unless an unre coverable error occurs Sector Number The sector number of the last transferred sector L 0 In LBA mode this register contains current LBA...

Страница 173: ...the ECC bytes are written to the disk media After 512 bytes of data have been transferred the device will keep setting D R Q 1 to indicate that the device is ready to receive the ECC bytes from the h...

Страница 174: ...15 Low 16 23 High L 1 H The head number of the sector to be transferred L 0 In LBA mode this register contains current LBA bits 24 27 L 1 The file internally uses 34 bytes of ECC on all data read or w...

Страница 175: ...sfers one or more sectors from the host to the device then the data is written to the disk media Command execution is identical to the Write Sectors command except that an interrupt is generated for e...

Страница 176: ...ansferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder High Low The cylinder number of the last transferred sector L 0 In LBA mode this register contains current LBA...

Страница 177: ...he device then the data is written to the disk media The sectors are transferred through the Data Register 16 bits at a time If an uncorrectable error occurs the write will be terminated at the failin...

Страница 178: ...ansferred sector L 0 In LBA mode this register contains current LBA bits 0 7 L 1 Cylinder High Low The cylinder number of the last transferred sector L 0 In LBA mode this register contains current LBA...

Страница 179: ...pecific In DBCA 2xxxxx implementation Write Verify command is exactry same as Write Sectors command 30h No read verification is performed after write operation Refer to Write Sectors Command for param...

Страница 180: ...172 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 181: ...mand Status Register 400 ns Command Command Code Out Register BSY 1 Interrupt DRQ For Status Register Status Register 30 sec Data Transfer In BSY 1 BSY 0 and DRQ 1 Interrupt Device Busy After 256th Re...

Страница 182: ...e the command if the host system timeout would occur for the device Note 1 For SECURITY ERASE UNIT command the execution time is referred to 12 21 Security Erase Unit F4h on page 133 Note 2 For FORMAT...

Страница 183: ...o retry Yes obsoleted 30h WRITE SECTOR S w retry Yes Mandatory 31h WRITE SECTOR S w o retry Yes Mandatory 32h WRITE LONG w retry Yes obsoleted 33h WRITE LONG w o retry Yes obsoleted 38h CFA TRANSLATE...

Страница 184: ...DIA EJECT No Optional 7 EEh IDENTIFY DEVICE DMA Yes obsoleted EFh SET FEATURES Yes Mandatory F0h Vendor specific Reserved Vendor specific F1h SECURITY SET PASSWORD Yes Optional 6 F2h SECURITY UNLOCK Y...

Страница 185: ...s 05h Enable Advanced Power Management Yes 09h Enable Address Offset mode Yes 44h Set vendor specific bytes ECC Yes 55h Disable read look ahead feature Yes 5Dh Enable release interrupt No 5Eh Enable S...

Страница 186: ...178 OEM Specifications of DBCA 2xxxxx 2 5 inch HDD...

Страница 187: ...ead Sectors 20h 21h 126 Read Verify Sectors 40h 41h 128 Recalibrate 1xh 130 S M A R T Function Set B0h 147 Security Disable Password F6h 131 Security Erase Prepare F3h 132 Security Erase Unit F4h 133...

Страница 188: ...ization 67 Sector Count Register 63 Sector Number Register 63 Status Register 63 Register Initialization 67 Reset Diagnostic and Reset considerations 68 Register Initialization 67 RST 61 S S M A R T F...

Страница 189: ...Timeout Parameter 114 160 Timeout Values 173 TK0NF 63 U UNC 63 V V 98 W Write Buffer 90 162 Write Cache 86 Write DMA 93 163 Write Long 90 165 Write Multiple 90 167 Write Sectors 90 169 Write Verify 91...

Страница 190: ...Published in Japan S25L 2426 02...

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