VXC-114U/144U/144iU User’s Manual (Ver. 1.2, Mar.11, 2009) -----47
4.5. Customized Baud Rate
To generate baud rate 125,000 bps:
125,000 * 16 * 8 = 16,000,000 = 16MHz crystal
So, when you use a 16MHz crystal and selecting the baud rate 115,200 bps in your software
setting, the hardware will generate baud rate 125kbps actually.
Warning:
The baud rates higher than 115,200 bps are not guaranteed to work.
To generate baud rate 250,000 bps:
250,000 * 16 * 4 = 16,000,000 = 16MHz crystal
(Baud rate * 16x clock * Divisor = Crystal Clock Frequency)
Thus, when you use a 16MHz crystal and selecting the baud rate 230,400 bps in your
software setting, the hardware will generate baud rate 250kbps actually.
Note: The multi-port serial cards can have a special baud rate in OEM version. Please
contact us for more information regarding the OEM products.
