4. 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
Start receive
error processing
4
Overrun error
processing
Yes
Yes
OER = 1?
No
Yes
Break?
No
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 RXD3x pin.
FER = 1?
No
Framing error
processing
Yes
PER = 1?
No
Clear bits OER, PER,
FER to 0 in SSR
Parity error
processing
(A)
End of receive
error processing
Figure 10-13 Example of Data Reception Flowchart (Asynchronous Mode) (cont)
302
ETC [ ETC ]
