Format of PCI Configuration data for Intel 82371SB Function 2 (USB):
Offset	Size	Description	)
 00h 64 BYTEs	header (see #00878)
		(vendor ID 8086h, device ID 7020h)
 20h	DWORD	I/O space base address
		(see PORT xxxxh"Intel 82371SB")
 40h 32 BYTEs	reserved
 60h	BYTE	Serial Bus Specification release number
		00h pre-release 1.0
		10h Release 1.0
 61h  9 BYTEs	reserved
 6Ah	WORD	miscellaneous status (see #01225)
 6Ch 84 BYTEs	reserved
 C0h	WORD	legacy support (see #01226)
 C2h 62 BYTEs	reserved
SeeAlso: #01167,#01214,PORT xxxxh"Intel 82371SB"