Seagate ST760211DE-60GB, ST740211DE-40GB Identify Device command, Word ATA specification Value

4.2.1Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single 512-byte (256 word) block of data, whose contents are as shown in the following table.

Word	ATA specification		Value
0	General configuration information bit-significant information		0040h
	Bit 15: 0 = ATA device
	Bit 7: 1 = removable media
	Bit 6: 1 = non-removable/fixed device
10–19	Serial number: (20 ASCII characters)		Serial number
23–26	Firmware revision (8 ASCII character string)		Firmware revision
27–46	Drive model number:		Model number
	(40 ASCII characters, padded with blanks to end of string)
47	Bits 7-0: Maximum number of sectors transferred per interrupt on		8010h
		Read Multiple/ Write Multiple commands
49	Capabilities		2B00h
	Bit 13: 1= Standby timer values specified in ATA-7 are supported
	Bit 11: 1= IORDY supported
	Bit 10: 0= IORDY may not be disabled
	Bit 9	: 1= LBA supported
	Bit 8	: 1= DMA supported
53	Bit 2: 1= the fields reported in word 88 are valid		0007h
	Bit 1: 1= the fields reported in words (70:64) are valid
59	Bit 8: 1= Multiple sector setting is valid		0110h
	Bits 7-0: Current setting for number of sectors transferred during a
		Read/Write Multiple command
60–61	Total number of user-addressable LBA sectors available		37E3E40h (30GB)
			4A82BA0h (40GB)
			6FC7C80h (60GB)
63	Bit 10: 1= Multiword DMA mode 2 is selected		xxx7h
		0= Multiword DMA mode 2 is not selected
	Bit 9: 1= Multiword DMA mode 1 is selected
		0= Multiword DMA mode 1 is not selected
	Bit 8: 1= Multiword DMA mode 0 is selected
		0= Multiword DMA mode 0 is not selected
	Bit 2: 1= Multiword DMA mode 2 and below are supported
	Bit 1: 1= Multiword DMA mode 1 and below are supported
	Bit 0: 1= Multiword DMA mode 0 is supported
64	Bits 7-0: PIO modes supported		0003h
65	Minimum Multiword DMA transfer cycle time per word		0078h
	Bits 15-0: Cycle time in nanoseconds
66	Recommended Multiword DMA transfer cycle time		0078h
	Bits 15-0: Cycle time in nanoseconds
67	Minimum PIO transfer cycle time without flow control		0078h
	Bits 15-0: Cycle time in nanoseconds
68	Minimum PIO transfer cycle time with IORDY flow control		0078h
	Bits 15-0: Cycle time in nanoseconds

Lyrion Series IDE Product Manual, Rev. F 25