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Serial Control Module: UART
Figure 93 shows the structure of the serial module.
Figure 93: Serial Module structure
Bit-rate generator
Each serial channel supports an independent programmable bit-rate generator. The
bit-rate generator runs both the transmitter and receiver of a given channel (there is
no split speed support).
You can configure the bit-rate generator to use external clock input or internal
system timing as its timing reference. This allows for a wider range of possible bit-
rates.
Table 364 describes all possible clock reference sources used by the bit-rate
generator.
Bit Rate
Generator
Receive
Fifo
Transmit
Fifo
Config
Receive
State
Machine
Transmit
State
Machine