Bitfields for Intel 82371MX DMA channel 5-7 address size register:
Bit(s)	Description	)
 7	Channel 7 16/8-Bit Count by Word/Byte
	=1 16-bit, count by word
	=0 8-bit, count by byte
 6	Channel 6 16/8-Bit Count by Word/Byte (same values as bit 7)
 5	Channel 5 16/8-Bit Count by Word/Byte (same values as bit 7)
4-3	reserved (0)
SeeAlso: #01168,PORT xxxxh"Intel 82371"