Hitachi HDS728080PLAT20 Specifications - Page 198

Set Features EFh

Page 198 highlights

12.37 Set Features (EFh) Table 134: 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 44H 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 52 bytes of ECC apply on Read Long/Write Long commands 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 7K80 Hard Disk Drive Specification 194

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Deskstar 7K80 Hard Disk Drive Specification
194
12.37
Set Features (EFh)
Table 134: Set Features command (EFh)
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
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Data
- - - - - - - -
Data
- - - - - - - -
Feature
V V V V V V V V
Error
see below
Sector Count
see note 1
Sector Count
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - -
Device/Head
1 - 1 D - - - -
Device/Head
- - - - - - - -
Command
1 1 1 0 1 1 1 1
Status
see below
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC UNC 0 IDN 0 ABT T0N AMN
BSY RDY DF DSC DRQ COR IDX ERR
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V
02H
Enable write cache
03H
Set transfer mode based on value in sector count register
05H
Enable Advanced Power Management
06H
Enable Power-up in Standby feature set
07H
Power-up in Standby feature set device spin-up
09H
Enable Address Offset mode
42H
Enable Automatic Acoustic Management
44H
52 bytes of ECC apply on Read Long/Write Long commands
5DH
Enable release interrupt
66H
Disable reverting to power on defaults
82H
Disable write cache
85H
Disable Advanced Power Management
86H
Disable Power-up in Standby mode
89H
Disable Address Offset mode
AAH
Enable read look-ahead feature
BBH
4 bytes of ECC apply on Read Long/Write Long commands
C2H
Disable Automatic Acoustic Management
CCH
Enable reverting to power on defaults