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Hitachi 7K400 Specifications - Page 261

Sector Count Current

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WC (bit6) WC specifies Write Continuous mode enabled. If the Write Continuous bit is set to one, the device shall not stop execution of the command due to errors. If the WC bit is set to one and errors occur in transfer or writing of the data, the device shall continue to transfer the amount of data requested and then provide ending status with BSY bit cleared to zero, the SE bit set to one, the ERR bit cleared to zero, and the type of error, IDNF or ABRT reported in the error log. If the WC bit is set to one and the Command Completion Time Limit expires, the device shall stop execution of the command and provide ending status with the BSY bit cleared to zero, the SE bit set to one, the ERR bit cleared to zero, and report the fact that the Command Completion Time Limit expired by setting the CCTO bit in the error log to one. In all cases, the device shall attempt to transfer the amount of data requested within the Command Completion Time Limit even if some data transferred is in error. F (bit5) F specifies that all data for the specified stream shall be flushed to the media before command complete is reported when set to one. HSE (bit4) HSE (Handle Stream Error) specifies that this command starts at the LBA of the last reported error for this stream, so the device may attempt to continue its corresponding error recovery sequence where it left off earlier. Stream ID (bit Stream ID specifies the stream being written. The device 0.2) shall operate according to the Stream ID set by the Write Stream command. Feature Previous The time allowed for the current command's completion is cal- culated as follows: Command Completion Time Limit = (content of the Feature register Previous) * (Identify Device words (99:98)) seconds If the value is zero, the device shall use the Default CCTL supplied with a previous Configure Stream command for this Stream ID. If the Default CCTL is zero, or no previous Configure Stream command was defined for this Stream ID, the device will ignore the CCTL. The time is measured from the write of the command register to the final INTRQ for command completion. Sector Count Current The number of continuous sectors to be transferred low order, bits (7:0) Sector Count Previ- The number of continuous sectors to be transferred high or- ous der, bits (15:8). If zero is specified in the Sector Count register, then 65,536 sectors will be transferred. Sector Number Cur- LBA (7:0). rent Sector Number Previ- LBA (31:24). ous Cylinder Low Current LBA (15:8). Cylinder Low Previous Cylinder High Current LBA (39:32). LBA (23:16). Deskstar 7K400 Hard Disk Drive Specification 247

Section	Page
1.0 General	15
1.1 Introduction	15
1.2 References	15
1.3 Abbreviations	15
1.4 Caution	17
2.0 General features of the drive	19
3.0 Fixed-disk subsystem description	23
3.1 Control electronics	23
3.2 Head disk assembly	23
3.3 Actuator	23
4.0 Drive characteristics	25
4.1 Default logical drive parameters	25
4.2 Data sheet	26
4.3 World Wide Name Assignment	26
4.4 Drive organization	26
4.4.1 Drive format	26
4.4.2 Cylinder allocation	27
4.5 Performance characteristics	28
4.5.1 Command overhead	28
4.5.2 Mechanical positioning	29
4.5.3 Drive ready time	30
4.5.4 Data transfer speed	31
4.5.5 Throughput	32
4.5.6 Operating modes	33
5.0 Defect flagging strategy	35
6.0 Specification	37
6.1 Electrical Interface	37
6.1.1 Connector location	37
6.1.2 DC Power connector	38
6.1.3 AT signal connector	38
6.2 Signal definitions (PATA model)	39
6.3 Signal descriptions	40
6.4 Interface logic signal levels (PATA model)	43
6.4.1 Signal definition (SATA model)	43
6.4.2 Out of band signaling (SATA model)	44
6.5 Signal timings (PATA model)	45
6.5.1 Reset timings	45
6.6 PIO timings	46
6.6.1 Write DRQ interval time	46
6.6.2 Read DRQ interval time	47
6.7 Multi word DMA timings	48
6.8 Ultra DMA timings	49
6.8.1 Initiating Read DMA	49
6.8.2 Host Pausing Read DMA	50
6.8.3 Host Terminating Read DMA	51
6.8.4 Device Terminating Read DMA	52
6.8.5 Initiating Write DMA	53
6.8.6 Device Pausing Write DMA	54
6.8.7 Device Terminating Write DMA	55
6.8.8 Host Terminating Write DMA	56
6.9 Addressing of registers	57
6.9.1 Cabling	57
7.0 Jumper Settings	59
7.1 Connector location	59
7.1.1 Jumper pin identification	59
7.1.2 Jumper pin assignment	60
7.1.3 Jumper positions	60
7.2 Environment	64
7.2.1 Temperature and humidity	64
7.2.2 Corrosion test	65
7.3 DC power requirements	65
7.3.1 Input voltage	65
7.3.2 Power supply current (typical)	65
7.3.3 Power supply generated ripple at drive power connector	66
7.4 Reliability	67
7.4.1 Data integrity	67
7.4.2 Cable noise interference	67
7.4.3 Start/stop cycles	67
7.4.4 Preventive maintenance	67
7.4.5 Data reliability	67
7.4.6 Required power-off sequence	67
7.5 Mechanical specifications	68
7.5.1 Physical dimensions and weight	68
7.5.2 Mounting hole locations	69
7.5.3 Connector locations	70
7.5.4 Drive mounting	71
7.5.5 Heads unload and actuator lock	71
7.6 Vibration and shock	72
7.6.1 Operating vibration	72
7.6.2 Nonoperating vibration	72
7.6.3 Operating shock	73
7.6.4 Nonoperating shock	73
7.6.5 Nonoperating rotational shock	74
7.7 Acoustics	75
7.8 Identification labels	75
7.9 Safety	76
7.9.1 UL and CSA standard conformity	76
7.9.2 German safety mark	76
7.9.3 Flammability	76
7.9.4 Safe handling	76
7.9.5 Environment	76
7.9.6 Secondary circuit protection	76
7.10 Electromagnetic compatibility	77
7.10.1 CE mark	77
7.10.2 C-TICK mark	77
7.10.3 BSMI mark	77
7.11 Packaging	77
8.0 General	79
8.1 Introduction	79
8.2 Terminology	79
8.3 Deviations from standard	79
9.0 Registers	81
9.1 Register set	81
9.2 Alternate Status Register	82
9.3 Command Register	82
9.4 Cylinder High Register	82
9.5 Cylinder Low Register	82
9.6 Data Register	83
9.7 Device Control Register	83
9.8 Drive Address Register	84
9.9 Device/Head Register	84
9.10 Error Register	85
9.11 Features Register	85
9.12 Sector Count Register	85
9.13 Sector Number Register	86
9.14 Status Register	86
10.0 General operation	89
10.1 Reset response	89
10.2 Register initialization	90
10.3 Diagnostic and Reset considerations	91
10.4 Sector Addressing Mode	92
10.4.1 Logical CHS addressing mode	92
10.4.2 LBA addressing mode	92
10.5 Overlapped and queued feature	92
10.6 Power management features	94
10.6.1 Power mode	94
10.6.2 Power management commands	94
10.6.3 Standby timer	94
10.6.4 Interface capability for power modes	95
10.7 S.M.A.R.T. Function	96
10.7.1 Attributes	96
10.7.2 Attribute values	96
10.7.3 Attribute thresholds	96
10.7.4 Threshold exceeded condition	96
10.7.5 S.M.A.R.T. commands	96
10.7.6 Off-line read scanning	96
10.7.7 Error log	97
10.7.8 Self-test	97
10.8 Security Mode Feature Set	98
10.8.1 Security mode	98
10.8.2 Security level	98
10.8.3 Passwords	99
10.8.4 Operation example	99
10.8.5 Command table	102
10.9 Host Protected Area Feature	103
10.9.1 Example for operation (In LBA Mode)	103
10.9.2 Security extensions	104
10.10 Seek overlap	105
10.11 Write cache function	106
10.12 Reassign function	107
10.12.1 Auto Reassign function	107
10.13 Power-Up in Standby feature set	108
10.14 Advanced Power Management feature set (APM)	109
10.15 Automatic Acoustic Management feature set (AAM)	110
10.16 Address Offset Feature	111
10.16.1 Enable/Disable Address Offset Mode	112
10.16.2 Identify Device Data	112
10.16.3 Exceptions in Address Offset Mode	112
10.17 48-bit Address Feature Set	113
10.18 Streaming Feature Set	113
10.18.1 Streaming commands	114
10.18.2 Urgent bit	114
10.18.3 Flush to Disk bit	114
10.18.4 Not Sequential bit	114
10.18.5 Read Continuous bit	115
10.18.6 Write Continuous bit	115
10.18.7 Handle Streaming Error bit	115
10.18.8 Streaming Logs	115
11.0 Command protocol	117
11.1 PIO Data In commands	117
11.2 PIO Data Out Commands	118
11.3 Non-data commands	119
11.4 DMA commands	121
11.5 DMA queued commands	122
12.0 Command descriptions	123
12.1 Check Power Mode (E5h/98h)	127
12.2 Configure Stream (51h)	128
12.3 Device Configuration Overlay (B1h)	130
12.3.1 DEVICE CONFIGURATION RESTORE (Subcommand C0h)	130
12.3.2 DEVICE CONFIGURATION FREEZE LOCK (Subcommand C1h)	130
12.3.3 DEVICE CONFIGURATION IDENTIFY (Subcommand C2h)	131
12.3.4 DEVICE CONFIGURATION SET (Subcommand C3h)	131
12.4 Download Microcode (92h)	134
12.5 Execute Device Diagnostic (90h)	135
12.6 Flush Cache (E7h)	136
12.7 Flush Cache Ext (EAh)	137
12.8 Format Track (50h)	138
12.9 Format Unit (F7h)	139
12.10 Identify Device (ECh)	140
12.11 Idle (E3h/97h)	151
12.12 Idle Immediate (E1h/95h)	152
12.13 Initialize Device Parameters (91h)	153
12.14 NOP (00h)	154
12.15 Read Buffer (E4h)	155
12.16 Read DMA (C8h/C9h)	156
12.17 Read DMA Ext (25h)	158
12.18 Read DMA Queued (C7h)	160
12.19 Read DMA Queued Ext (26h)	162
12.20 Read Log Ext (2Fh)	164
12.20.1 General Purpose Log Directory	166
12.20.2 Extended Comprehensive SMART Error Log	167
12.20.3 Extended Self-test log sector	169
12.20.4 Read Stream Error log	170
12.20.5 Write Stream Error log	171
12.20.6 Streaming Performance log	172
12.21 Read Long (22h/23h)	174
12.22 Read Multiple (C4h)	176
12.23 Read Multiple Ext (29h)	178
12.24 Read Native Max ADDRESS (F8h)	180
12.25 Read Native Max Address Ext (27h)	181
12.26 Read Sectors (20h/21h)	182
12.27 Read Sector(s) Ext (24h)	184
12.28 Read Stream DMA (2Ah)	186
12.29 Read Stream PIO (2Bh)	189
12.30 Read Verify Sectors (40h/41h)	192
12.31 Read Verify Sector(s) (42h)	194
12.32 Recalibrate (1xh)	196
12.33 Security Disable Password (F6h)	197
12.34 Security Disable Password (F3h)	198
12.35 Security Erase Unit (F4h)	199
12.36 Security Freeze Lock (F5h)	201
12.37 Security Set Password (F1h)	202
12.38 Security Unlock (F2h)	204
12.39 Seek (7xh)	205
12.40 Service (A2h )	206
12.41 Set Features (EFh)	207
12.41.1 Set Transfer mode	208
12.41.2 Write Cache	208
12.41.3 Advanced Power Management	208
12.41.4 Automatic Acoustic Management	209
12.41.5 Set Maximum Host Interface Sector Time	210
12.42 Set Max ADDRESS (F9h)	211
12.42.1 Set Max Set Password (Feature=01h)	213
12.42.2 Set Max Lock (Feature=02h)	214
12.42.3 Set Max Unlock (Feature = 03h)	215
12.42.4 Set Max Freeze Lock (Feature = 04h)	216
12.43 Set Max Address Ext (37h)	217
12.44 Set Multiple (C6h)	219
12.45 Sleep (E6h/99h)	220
12.46 S.M.A.R.T. Function Set (B0h)	221
12.46.1 S.M.A.R.T. Function Subcommands	221
12.46.2 Device Attribute Data Structure	225
12.46.3 Device Attribute Thresholds data structure	228
12.46.4 S.M.A.R.T. Log Directory	230
12.46.5 S.M.A.R.T. summary error log sector	230
12.46.6 Self-test log data structure	232
12.46.7 Selective self-test log data structure	233
12.46.8 Error reporting	234
12.47 Standby (E2h/96h)	235
12.48 Standby Immediate (E0h/94h)	236
12.49 Write Buffer (E8h)	237
12.50 Write DMA (CAh/CBh)	238
12.51 Write DMA Ext (35h)	240
12.52 Write DMA Queued (CCh)	242
12.53 Write DMA Queued Ext (36h)	244
12.54 Write Log Ext (3Fh)	246
12.55 Write Long (32h/33h)	247
12.56 Write Multiple (C5h)	249
12.57 Write Multiple Ext (39h)	251
12.58 Write Sectors (30h/31h)	253
12.59 Write Sector(s) (34h)	255
12.60 Write Stream DMA (3Ah)	257
12.61 Write Stream PIO (3Bh)	260

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Deskstar 7K400 Hard Disk Drive Specification

247

(bit6)

WC specifies Write Continuous mode enabled.

If the Write

Continuous bit is set to one, the device shall not stop ex-

ecution of the command due to errors.

If the WC bit is set to one and errors occur in transfer or

writing of the data, the device shall continue to transfer

the amount of data requested and then provide ending status

with BSY bit cleared to zero, the SE bit set to one, the ERR

bit cleared to zero, and the type of error, IDNF or ABRT re-

ported in the error log.

If the WC bit is set to one and the Command Completion Time

Limit expires, the device shall stop execution of the command

and provide ending status with the BSY bit cleared to zero,

the SE bit set to one, the ERR bit cleared to zero, and report

the fact that the Command Completion Time Limit expired by

setting the CCTO bit in the error log to one.

In all cases, the device shall attempt to transfer the amount

of data requested within the Command Completion Time Limit

even if some data transferred is in error.

F (bit5)

F specifies that all data for the specified stream shall be

flushed to the media before command complete is reported when

set to one.

HSE (bit4)

HSE (Handle Stream Error) specifies that this command starts

at the LBA of the last reported error for this stream, so

the device may attempt to continue its corresponding error

recovery sequence where it left off earlier.

Stream ID (bit

0.2)

Stream ID specifies the stream being written.

The device

shall operate according to the Stream ID set by the Write

Stream command.

Feature Previous

The time allowed for the current command's completion is cal-

culated as follows:

Command Completion Time Limit = (content of the Feature

Previous) * (Identify Device words

(99:98)) seconds

If the value is zero, the device shall use the Default CCTL

supplied with a previous Configure Stream command for this

Stream ID.

If the Default CCTL

is zero, or no previous

Configure Stream command was defined for this Stream ID, the

device will ignore the CCTL.

The time is measured from the

write of the command register to the final INTRQ for command

completion.

Sector Count Current

The number of continuous sectors to be transferred low order,

bits (7:0)

Sector Count Previ-

ous

The number of continuous sectors to be transferred high or-

der, bits (15:8).

If zero is specified in the Sector Count

Sector Number Cur-

rent

LBA (7:0).

Sector Number Previ-

ous

LBA (31:24).

Cylinder Low Current

LBA (15:8).

Cylinder Low

LBA (39:32).

Cylinder High

Current

LBA (23:16).