Int 7F Fn 14 - Alloy Ntnx, Mw386 - Set Channel Buffer Pointer [N]
AH = 14h
CL = 02h
AL = channel number
DX:DI -> receive buffer
Return: AL = status (00h-03h) (see #3625)
Note: may be called from within a receive ISR or when a datagram is pending
See Also: AH=10h/CL=00h,AH=14h/CL=00h