LIN Master Software Description
Data Flow
DRM047 — Rev 0
Designer Reference Manual
MOTOROLA
LIN Master Software Description
49
Debug mode functionality was successfully tested at frequencies up to
20 kHz on the DATA pin.
Figure 5-5. Debug Mode Data Flow Chart
5.2.12 Pass Mode Program Flow
Is based on an endless software loop, that copies the RxD signal
(RS232) to the LIN SIO wire and then copies the LIN SIO wire signal
back to TxD (RS232) (see
). Functionality of the
Exchange
9
MON2
Output
High impedance state
0V
(Set by JP2 on Master Board)
10
MON3
Output
High impedance state
+5V
(Set by JP3 on Master Board)
Table 5-1. Debug Line Output
Pin number
Pin name
Pin type
Master Board signals
DTR - High level
(Reset)
DTR - Low level
(Debugging and
programming)
Debug/Programming
Control
PTS
PTP
PTM
PTA
RS232
MONs
Debug line
LIN
PTH
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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