Maxtor 300 manual Serial number 20 Ascii characters 20-21 Retired

		ATA Bus Interface and ATA Commands
		Table 5-2Identify Drive Command Parameters
Word		CONTENT DESCRIPTION
10-19	Serial number (20 ASCII characters)
20-21	Retired
22	Reserved
23-26	Firmware revision (8 ASCII characters)
27-46	Model number (40 ASCII characters)
47	15-8:	80h
	7-0:	00h = Reserved
	01h-FFh: = Maximum number of sectors that shall be transferred per interrupt on
		READ/WRITE MULTIPLE commands
48	Reserved
49	Capabilities
	15-14:	Reserved for the IDENTIFY PACKET DEVICE command.
	13:
	1 = Standby timer values as specified in this standard are supported.
	0 = Standby timer values shall be managed by the device
	12:	Reserved for the IDENTIFY PACKET DEVICE command.
	11:	1 = IORDY supported. 0 = IORDY may be supported
	10:	1 = IORDY may be disabled
	9:	1 = LBA supported
	8:	1 = DMA supported.
	7-0:	Retired
50	Capabilities
	15:	Shall be cleared to zero.
	14:	Shall be set to one.
	13-2:	Reserved.
	1:	Obsolete
	0:	Shall be set to one to indicate a device specific Standby timer value
		minimum.
51-52	Obsolete

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