Bitfields for Intel 82371MX FDC Enable register:
Bit(s)	Description	)
 7	Coprocessor Error fuction Enable
 6	IRQ12/M Mouse Function Enable
 5	System Management Output 5/Disk Output Enable
 4	System Management Output 4/RTCALE Enable
 3	Motherboad DMA 2 Disable
 2	reserved
 1	Floppy Secondary Addess Enable
 0	Floppy Primary Address Enable
SeeAlso: #01168,PORT xxxxh"Intel 82371"