Product manual

ATA Bus Interface and ATA Commands

5-2 DiamondMax Plus8 20/30/40GB AT

consumption for the overall system.

5.4 REGISTER ADDRESS DECODING

The Maxtor DiamondMax Plus8 hard disk drives allow their host systems to address

the full set of command and control registers as specified in clause 7 of the ATA/

ATAPI-6 standard.

5.5 COMMAND INTERFACE

5.5.1 General Feature Set

The µProcessor, Disk Controller, and ATA Interface electronics are contained in a

proprietary ASIC developed by Maxtor.

5.5.2 Supported Commands

The Maxtor DiamondMax Plus8 hard disk drives support all the mandatory

commands from the general feature set for devices not supporting the Packet

command feature set. Refer to the ATA/ATAPI-6 standard for a detailed description

of these commands. The IDENTIFY DRIVE command, however, is elaborated in

the section "Identify Drive Command" on page 5-5.

Table 5-1 lists the supported commands.

Table 5-1 Supported Commands

Command

Code

Feature

Value(s)

CHECK POWER MODE 98h, E5h

DEVICE CONFIGURATION FREEZE LOCK B1h C1h

DEVICE CONFIGURATION IDENTIFY B1h C2h

DEVICE CONFIGURATION RESTORE B1h C0h

DEVICE CONFIGURATION SET B1h C3h

DOWNLOAD MICROCODE 92h 07h, 01h

EXECUTE DRIVE DIAGNOSTIC 90h

FLUSH CACHE E7h

IDENTIFY DRIVE ECh

IDLE 97h, E3h

IDLE IMMEDIATE 95h, E1h