Hitachi 7K400 Specifications - Page 207
Set Features EFh
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12.41 Set Features (EFh) Table 144: Set Features command (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 Sector Number Cylinder Low Cylinder High Device/Head 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 Sector Number Cylinder Low Cylinder High Device/Head 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. Output parameters to the device 02H 03H 05H 06H 07H 09H 42H 43H 44H 55H 5DH 66H 82H 85H 86H 89H AAH BBH C2H CCH Enable write cache Set transfer mode based on value in sector count register Enable Advanced Power Management Enable Power-up in Standby feature set Power-up in Standby feature set device spin-up Enable Address Offset mode Enable Automatic Acoustic Management Set Maximum Host Interface Sector Time 52 bytes of ECC apply on Read Long/Write Long commands Disable read look-ahead feature Enable release interrupt Disable reverting to power on defaults Disable write cache Disable Advanced Power Management Disable Power-up in Standby mode Disable Address Offset mode Enable read look-ahead feature 4 bytes of ECC apply on Read Long/Write Long commands Disable Automatic Acoustic Management Enable reverting to power on defaults Deskstar 7K400 Hard Disk Drive Specification 193