Format of PCI Configuration data for Intel 82380FB PCI-PCI Bridge (MPCI2):
Offset	Size	Description	)
 00h 64 BYTEs	header type 1 [bridge] (see #00878)
		(vendor ID 8086h, device ID 124Bh)
 40h	BYTE	Connector Control (see #01094)
 41h	BYTE	Connector Event (see #01095)
 42h  2 BYTEs	reserved
 44h	WORD	Serial Bus Interface/Burst Enable (see #01096)
 46h	BYTE	MPCI2 Miscellaneous Status (see #01097)
 47h  5 BYTEs	reserved
 4Ch	WORD	Special Message Encode
		encoded message portion of Special Cycle forwarded by MPCI2
 4Eh 178 BYTEs	reserved
SeeAlso: #00873,#01090