PCI Dual LPT & RS232 Software Configuration
Chapter 3 Page 19
6. Advanced - clicking on this will display the following
window:
Settings available in this window are:
•
Use FIFO Buffers - turns the selected ports FIFO
buffer on or off. It is strongly recommended that
the FIFO for both ports is left enabled.
•
Receive Buffer - These settings allow the selection
of a receiver FIFO trigger setting. Selecting a low
value will allow the interrupt to be serviced
quicker, which is good for slow machines. If you
have a fast machine, setting a high value will give
you more time for multi-tasking operations.
•
Transmit Buffer - These settings allow the
selection of a transmitter FIFO trigger setting.
Selecting a low value will send fewer data-bytes
per interrupt, and this is recommended if you are
communicating to a slower machine. Selecting a
high value will send more data-bytes per interrupt,
and will give more time for multi-tasking
operations.
•
Defaults: when clicked this button restores the
advanced settings for the selected port to:
