Hitachi IC25N080ATMR04-0 Specifications - Page 163
Set Features EFh
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13.33 Set Features (EFh) Table 107: 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 02H 03H 05H 09H 44H 55H 66H 82H 85H 89H AAH BBH CCH Enable write cache (See note 2) Set transfer mode based on value in sector count register Reserved (See note 3) Enable Address Offset mode 40 bytes of ECC apply on Read Long/Write Long commands Disable read look-ahead feature Disable reverting to power on defaults Disable write cache Reserved (See note 3) Disable Address Offset mode Enable read look-ahead feature 4 bytes of ECC apply on Read Long/Write Long commands Enable reverting to power on defaults Travelstar 80GN Hard Disk Drive Specification 153