Chapter 3 Page 19 - Brainboxes CC-431 Hardware Manual

PCI 3 Port RS232
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:
7. Restore Defaults - when clicked, resets the selected
COM port to the following values:
Baud Rate:
Data Bits:
Parity:
Stop Bits:
Flow Control:
Use FIFO Buffers:
Receive Buffer:
Transmit Buffer:
Software Configuration
On (Checked)
High (14)
High (14)
9600
8
None
1
Xon / Xoff

Chapter 3 Page 19