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Rev. 5.00, 09/03, page 547 of 760
1. Whether a framing error or parity error has occurred in the receive data read from SCFRDR
can be ascertained from the FER and PER bits in SCSSR.
2. When a break signal is received, receive data is not transferred to SCFRDR while the BRK
flag is set. However, note that the last data in SCFRDR is H'00 and the break data in which a
framing error occurred is stored.
Error handling
End
BRK = 1?
DR = 1?
ER = 1?
Yes
Yes
Yes
Clear DR, ER, BRK flags in
SCSSR to 0
No
No
No
Receive error handling
Break processing
Read receive data from SCFRDR
(1)
(2)
Figure 16.10 Sample Flowchart for Receiving Serial Data (cont)