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Serial Controller Module
– CTS, DSR, DCD, RI state change detection
Clock/Data encoding
– NRZ
– NRZB
– NRZI
– FM
– Manchester
Multi-drop capable
Figure 24 shows the structure of the serial module.
Figure 24: Serial port block diagram
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 (no split
speed support).
Config
32-byte
FIFO
32-byte
FIFO
Bit rate
generator
Receive
state
machine
Transmit
state
machine
DMA