Bitfields for Intel 82443EX/LX DRAM Extended Mode Select register:
Bit(s)	Description	)
 15-8	reserved
 7-5	Operating Mode
	000	Normal operating mode
	001	NOP command enabled
	010	All banks precharge enable
	011	Mode register set command enable
	100	CBR cycle enable
	101-11x reserved
 4	reserved
 3-2	Page timeout select
	00    16 clocks
	01-11 reserved
 1-0	Close both banks control
	00    close both banks on page misses
	01-11 reserved
SeeAlso: #01129