Maxtor 80-160GB manual Total number of user addressable sectors

			ATA Bus Interface and ATA Commands
Word			Content Description
53	15-3:		Reserved
	2:
	1	= the fields reported in word 88 are valid.
	0	= the fields reported in word 88 are not valid
	1:
	1	= the fields reported in words (70:64) are valid.
	0	= the fields reported in words (70:64) are not valid
	0:		Obsolete
54-58	Obsolete
59	15-9:		Reserved
	8:		1 = Multiple sector setting is valid
	7-0:		xxh = Current setting for number of sectors that shall be transferred per interrupt
	on R/W Multiple command
60-61	Total number of user addressable sectors
62	Obsolete
63	15-11:		Reserved
	10:
	1	= Multiword DMA mode 2 is selected.
	0	= Multiword DMA mode 2 is not selected
	9:
	1	= Multiword DMA mode 1 is selected.
	0	= Multiword DMA mode 1 is not selected
	8:
	1	= Multiword DMA mode 0 is selected.
	0	= Multiword DMA mode 0 is not selected
	7-3:		Reserved
	2:		1 = Multiword DMA mode 2 and below are supported
	1:		1 = Multiword DMA mode 1 and below are supported
	0:		1 = Multiword DMA mode 0 is supported
64	15-8:		Reserved
	7-0:		PIO modes supported
65	Minimum Multiword DMA transfer cycle time per word
	15-0:		Cycle time in nanoseconds
66	Manufacturer’s recommended Multiword DMA transfer cycle time
	15-0:		Cycle time in nanoseconds
67	Minimum PIO transfer cycle time without flow control
	15-0:		Cycle time in nanoseconds

Maxtor DiamondMax 17 80-160GB AT Hard Disk Drive 5-7