Maxtor 96147H8, 93073H4, 91536H2, 94610H6 Mode Set/Check Commands, Value Description, Ev E L

INTERFACE COMMANDS

Mode Set/Check Commands

Set Features Mode

Enables or disables features supported by the drive. When the drive receives this command it:

1.Sets BSY,

2.Checks the contents of the Features register,

3.Clears BSY and

4.Generates an interrupt.

If the value of the register is not a feature supported by the drive, the command is aborted. The acceptable values in the Features register are defined as follows:

VALUE	DESCRIPTION
0 2 h	Enabled Write Cache
03h	Set Transfer Mode based on value in Sector Count register
05h	Enable Advanced Power Management
42h	Enable Automatic Acoustic Management. The sector count register contains the
	Automatic Acoustic Management level.
	S E C T O R	L EV E L
	F F h	Maxtor specific
	FEh	Maximum performance
	81h - FDh	Intermediate acoustic management levels
	80h	Minimum acoustic emanation level
	00h-7Fh	reserved
44h	Length of data appended on Read Long/Write Long commands specified in the
	Identify Device information
55h	Disable Read Look-ahead feature
66h	Disable reverting to Power-on defaults
82h	Disable Write Cache
85h	Disable Advanced Power Management
AAh	Enable Read Look-ahead feature
BBh	4 bytes of Maxtor specific data appended on Read Long/Write Long commands
C2h	Disable Automatic Acoustic Management
C C h	Enable reverting to Power-on defaults

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