Seagate ST3750840ACE manual Xx07H

Word	Description	Value
60–61	Total number of user-addressable LBA sectors available	0FFFFFFFh*
	(see Section 2.2 for related information)
	*Note: The maximum value allowed in this field is: 0FFFFFFFh
	(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137
	Gbytes will have 0FFFFFFFh in this field and the actual number of
	user-addressable LBAs specified in words 100-103. This is required
	for drives that support the 48-bit addressing feature.
62	Retired	0000H
63	Multiword DMA active and modes supported	xx07H
	(see note following this table)
64	Advanced PIO modes supported (modes 3 and 4 supported)	0003H
65	Minimum multiword DMA transfer cycle time per word (120 nsec)	0078H
66	Recommended multiword DMA transfer cycle time per word (120	0078H
	nsec)
67	Minimum PIO cycle time without IORDY flow control (240 nsec)	00F0H
68	Minimum PIO cycle time with IORDY flow control (120 nsec)	0078H
69–74	ATA-reserved	0000H
75	Queue depth	0000H
76–79	SATA-specific	xxxxH
80	Major version number	007EH
81	Minor version number	0000H
82	Command sets supported	346BH
83	Command sets supported	7D01H
84	Command sets support extension	4003H
85	Command sets enabled	34xxH
86	Command sets enabled	3xxxH
87	Command sets enable extension	4003H
88	Ultra DMA support and current mode	xx3FH
	(see note following this table)
89	Security erase time	0000H
90	Enhanced security erase time	0000H
92	Master password revision code	FFFEH
93	Hardware reset value (see description following this table)	xxxxH
95–99	ATA-reserved	0000H
100–103	Total number of user-addressable LBA sectors available (see Sec-	ST3750840ACE = 1,465,149,168
	tion 2.2 for related information). These words are required for drives	ST3500830ACE = 976,773,168
	that support the 48-bit addressing feature. Maximum value:	ST3400820ACE = 781,422,768
	0000FFFFFFFFFFFFh.	ST3320820ACE = 625,142,448
		ST3300820ACE = 586,072,368
		ST3250820ACE = 488,397,168
104–127	ATA-reserved	0000H
128	Security status	0001H
129–159	Seagate-reserved	xxxxH

DB35.3 Series PATA Product Manual, Rev. B 31