The TX modulator consists of an internal Manchester coder that is activated when TMCR2.TMNRZE
is set to ‘0’. The Manchester coder only affects data from the DFIFO and the
CRC checksum, as shown in Table 3-41. The default polarity of the Manchester coder shows in the following figure.
If the inverse polarity is required, the TMCR2.TMPOL bit must be set to ‘1’.
Please note that this setting is also valid for data from the SFIFO and the stop sequence (see
Table 3-41).Figure 3-26. TX Modulator Default Manchester
Coding
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