User’s Manual
M68HC12A4EVB Evaluation Board — Rev. 1
76
Operation
MOTOROLA
Operation
PF4/CSD and PF5/CSP0 — Dedicated to chip-select usage. Not
available for I/O in the default configuration
Ports A, B, C, D, and G — Dedicated to address/data bus usage. Not
available as I/O ports in the default configuration
3.10.4 Terminal Communications
High baud rates occasionally result in dropped characters on the terminal
display. This is not the result of a baud rate mismatch, but is due to the host
processor being too busy or too slow to process incoming data at the selected
baud rate. The D-Bug12 MD, MDW, T, and HELP commands may be affected
by this problem. Sometimes the problem can be ignored without harm.
If it requires correcting, try:
•
Using a slower baud rate
•
A different communications program
•
Closing unnecessary applications or exiting Windows. In multitasking
environments such as Windows
®
and the Macintosh System 7
®
, the
problem can occur when several applications are running at once.
•
Displaying fewer address locations or tracing fewer instructions at a time
when using the MD, MDW, or T commands
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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