Int 14 Fn 164E  - Digiboard - Ccb Command - Irq Polling Timer To Host      [S]

   AX = 164Eh
   BL = ticks
   BH = ???
   CL = mode
   DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)

Return: AH = status
       00h successful
       80h error
       FFh error

See Also: AH=16h"Digiboard",AX=164Dh