Format of PCI Configuration Data for Intel 82439TX "MTXC":
Offset	Size	Description	)
 00h 64 BYTEs	header (see #00878)
		(vendor ID 8086h, device ID 7100h)
		(revision ID 00h = A0 stepping)
 40h 15 BYTEs	reserved
 4Fh	BYTE	Arbitration Control register (see #01109)
 50h	BYTE	PCI Control register (see #01110)
 51h	BYTE	reserved
 52h	BYTE	Cache Control register (see #01112)
 53h	BYTE	Extended Cache Control register (see #01113)
 54h	WORD	SDRAM Control Register (see #01114)
 56h	BYTE	DRAM Extended Control register (see #01115)
 57h	BYTE	DRAM Control register (see #01116)
 58h	BYTE	DRAM Timing register (see #01117)
 59h  7 BYTEs	Programmable Attribute Map registers 0-6 (see #01118)
 60h  6 BYTEs	DRAM Row Boundary registers 0-5
		each register N indicates cumulative amount of memory in rows
		  0-N (each 64 bits wide), in 4M units
 66h	BYTE	reserved
 67h	BYTE	DRAM Row Type High register (see #01213)
 68h	BYTE	DRAM Row Type Low register (see #01119)
 69h  7 BYTEs	reserved
 70h	BYTE	Multi-Transaction Timer register
		number of PCLKs guaranteed to the current agent before the
		  82439TX will grant the bus to another PCI agent on request
 71h	BYTE	Extended System Management RAM Control register (see #01149)
 72h	BYTE	System Management RAM Control register (see #01123)
 73h  6 BYTEs	reserved
 79h	BYTE	Miscellaneous Control register (see #01128)
 7Ah 134 BYTEs	reserved
Note:	The Intel 82439TX chipset uses PCI configuration mechanism #1eAlso:  #00873,PORT 0CF8h
SeeAlso:  #00873,PORT 0CF8h