Category: serial I/O
INT 14 - Digiboard - CCB COMMAND - IRQ POLLING TIMER TO HOST 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 SeeAlso: AH=16h"Digiboard",AX=164Dh