Hitachi HTS725050A9A364 Datasheet Page 24
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7K500 OEM SPECIFICATION
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5.8
5.85.8
5.8 ECC
ECCECC
ECC
The 10 bit 40 symbol non interleaved ECC processor provides user data verification and correction
capability. The first 6 symbol of ECC are 4 check symbols for user data and the 2 symbol system ECC.
The other 34 symbols are Read Solomon ECC. Hardware logic corrects up to 16 symbols(20 bytes)
errors on-the-fly.
2 symbol System ECC is generated when HDC receives user data from HOST, and can correct up to 1
symbol(10bit) errors on-the-fly when one transfers to HOST.
- Hitachi Travelstar 7K500 1
- Table of Contents 3
- 7K500 OEM SPECIFICATION 10
- Command overhead 18
- Mechanical positioning 19
- Table 9. Drive ready time 20
- Operating modes 21
- Load/unload 30
- Load/unloadLoad/unload 30
- Table 17. Random vibration 34
- Table 20. Operating shock 35
- 7.3.37.3.3 41
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- Table 26 Device Register 48
- Table 27 Error Register 48
- Table 28 Status Register 49
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- Register Initialization 51
- Table 31 Diagnostic Codes 52
- Table 34 Power conditions 55
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- Figure 5 Initial Setting 60
- .2 User Password Lost 61
- User Password Lost 61
- Command Table 62
- Command Table Command Table 62
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- 12.10.112.10.1 65
- 12.10.1 65
- 12.10.212.10.2 66
- 12.10.2 66
- Auto Reassign Function 67
- 12.14.112.14.1 68
- 12.14.1 68
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- Table 40 Command set 73
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- DMA Setup FIS supported 80
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- MA Setup FIS 93
- MA Setup FIS enabled 93
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- HTS7250XXA9A3XX” on Page 100 99
- 7K500 OEM Specification 100
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- SMART error log version 1 00h 110
- Command Error 113
- Command ErrorCommand Error 113
- Phy Event Counter 114
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- Note 1 136
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- S.M.A.R.T. Sub commands 143
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- Format Value 148
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- Format 149
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- Device Control register 1 155
- Reserved 1 155
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- 14.40.614.40.6 157
- 14.40.6 157
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- Table 111 Log sector 166
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- Table 139 Timeout Values 174
- “ ” “ ” “ ” “ ” 174
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