Format of AMD-645 Peripheral Bus Controller, function 2 (USB Controller) data:
Offset	Size	Description	)
 00h 64 BYTEs	header (see #00878)
		(vendor ID 1106h, device ID 3038h)
 20h	DWORD	base address of USB I/O ports (see PORT xxxxh"AMD-645 - USB"
 40h	BYTE	miscellaneous control 1 (see #01047)
 41h	BYTE	miscellaneous control 2 (see #01048)
 42h  2 BYTEs	reserved
 44h  3 BYTEs	reserved ("do not program")
 47h	BYTE	reserved
 48h 24 BYTEs	reserved
 60h	BYTE	USB release number (read-only, 10h)
 61h 95 BYTEs	reserved
 C0h	WORD	USB legacy support (read-only, 2000h)
 C2h 62 BYTEs	reserved
SeeAlso: #00817,#00983,#01011,#01034,#01049