Maxtor 546106, 51536H2, 52049H3, 53073H4 specifications InitializationCommands, Or D ENT Desc Ription

INTERFACE COMMANDS

InitializationCommands

Identify Drive

Allows the host to receive parameter information from the drive.

When the command is received, the drive:

1.Sets BSY,

2.Stores the required parameter information in the sector buffer,

3.Sets the DRQ bit and

4.Generates an interrupt.

The host may then read the information out of the sector buffer. Parameter words in the buffer follow. Note that all reserved bits or words should be zeroes.

W OR D	CONT ENT DESC RIPTION
0	General configuration
	15 = device (0 = ATA device, 1 = ATAPI)
	14 -8 = retired
	7, 1 = removable media device
	6, 1 = not removable controller and/or device
	5-3 = retired
	2 = response incomplete
	1 = retired
	0 = reserved
1	Number of logical cylinders
2	Reserved
3	Number of logical heads
4-5	Retired
6	Number of logical sectors per logic al track
7-8	Reserved
9	Retired
10 - 19	Drive serial number (20 ASCII characters )
20 - 21	Retired
22	Obsolete
23 - 26	F irmware revision (8 ASCII characters )
27 - 46	Model number (40 ASCII characters )
47	Maximum number of sectors that c an be transferred per interrupt on read and write multiple commands
48	Reserved
49	C apabilities
	15 - 14 = reserved
	13 = s tandby timer (1 = values as specified in this s tandard are s upported, 0 = values are Maxtor specific )
	12 = reserved (advanc ed PIO mode support)
	11, 1 = IORD Y supported, 0 = IORDY may be supported
	10, 1 = IORDY can be disabled
	9-8 = shall be set to one. Us ed by Identify Packet Device comm and .
	7-0 = not us ed

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