Maxtor D540X-4K manual 6CDNG, Read Defect List Read Configuration SET Configuration

ATA Bus Interface and ATA Commands

determined from the information returned from the IDENTIFY DEVICE command. Where the entry is none, the default setting must be determined by other analytical means or by asking a trusted human source. The last column shows the default setting (enabled or disabled) for each supported feature.

Supported Features

02h'PCDNG￿	82h&KUCDNG￿	6CDNG￿￿￿￿￿￿	88+&￿bit9QTF&GHCWNV5 02h
		Write cache (GCVWTG￿PCOG			￿
03h	na	Set transfer mode	63, 88	03h
42h	C2h	Automatic Acoustic Management	86 bit 9,	42h
		feature set	94
55h	AAh	Read look-ahead feature	85 bit 6	55h
CCh	66h	Reverting to power-on defaults	None	CCh

￿￿￿￿￿￿/CZVQTThe drives￿5RGEKHKEsupport￿%QOOCPFUthe following Maxtor specific commands:

•READ DEFECT LIST

•READ CONFIGURATION

•SET CONFIGURATION

￿￿￿￿￿￿￿￿4'#&The￿&'('%6READ DEFECT￿.+56LIST command enables the host to retrieve the drive’s defect list. Prior to issuing this command the host should issue the READ DEFECT LIST LENGTH command. This command will not transfer any data. It instead, stores the length in sectors of the defect list in the Sector Count register (1F2), and the Sector Number register (1F3), with the Sector Count register containing the LSB of the 2- byte value (see Table 6-3). The defect list length is a fixed value for each Maxtor product and can be calculated as follows:

length in sectors = (((maximum number of defects) * 8 + 4) + 511)/512

At the completion of the command, the task file registers 1F2 – 1F6 will contain bytes necessary to execute the READ DEFECT LIST command, and the host will only need to write the extended command code (F0h) to the Command register (1F7) to proceed with the READ DEFECT LIST command execution.

6-8 Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT