Int 14 Fn 10 - Mbbios Paccom Support - Set Crc Wait [S]
AH = 10h
AL = new setting in clock ticks (should be at least 5 character times)
Return: nothing
Desc: specify the time from start of last character to dropping RTS
See Also: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"