Bitfields for Intel 82434LX/NX Error Status register:
Bit(s)	Description	)
 7	reserved
 6	PCI-write detected parity error
 5	(NX only) PCI-read detected parity error
 4	(NX only) PCI address parity error detected
 3	main memory data parity error
 2	L2 cache data parity error
 1	reserved
 0	Shutdown cycle detected
Note:	clear status bits by writing a 'one' bit to each bit to be cleared
SeeAlso: #01060,#01055