Hitachi 7K100 Hard Drive Specifications - Page 169
Set Features EFh
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13.34 Set Features (EFh) Table 109: Set Features (EFh) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature V V V V V V V V Sector Count see note 1 LBA Low LBA Mid LBA High Device 1 - 1 D - - - - Command 1 1 1 0 1 1 1 1 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count LBA Low LBA Mid LBA High Device Status see below Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0- - 0 - V The Set Feature command establishes the following parameters which affect the execution of certain features as shown in the table below. ABT will be set to 1 in the Error Register if the Feature register contains any undefined values. After the power on reset or hard reset the device is set to the following features as default. Write cache ECC bytes Read look-ahead Reverting to power on defaults Address Offset mode Enable 4 bytes Enable Disable Disable Output parameters to the device Feature 02H 03H 05H 06H 07H 09H 42H 44H 55H 66H 82H 85H Destination code for this command Enable write cache (See note 2) Set transfer mode based on value in sector count register Reserved (See note 3) Enable Power-Up in Standby feature set Power-Up in Standby feature set device spin-up Enable Address Offset mode Enable Automatic Acoustic Management feature set 51 bytes of ECC apply on Read/Write long commands Disable read look-ahead feature Disable reverting to power on defaults Disable write cache Disable Advanced Power Management (Note .3) Travelstar 7K100 Hard Disk Drive Specification 155