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Start receive
4
error processing
OER = 1?
No
FER = 1?
No
PER = 1?
No
Clear bits OER, PER,
FER to 0 in SSR
End of receive
error processing
Figure 10-10 Example of Data Reception Flowchart (Asynchronous Mode) (cont)
292
Overrun error
processing
Yes
Break?
Yes
Framing error
Yes
processing
Parity error
processing
4.
Yes
No
(A)
If a receive error has
occurred, read bits OER,
PER, and FER in SSR to
identify the error, and after
carrying out the necessary
error processing, ensure
that bits OER, PER, and
FER are all cleared to 0.
Reception cannot be
resumed if any of these
bits is set to 1. In the case
of a framing error, a break
can be detected by reading
the value of the RXD
3x
pin.
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