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Error handling
No
ORER = 1?
Overrun error handling
No
ER = 1?
Receive error handling
No
BRK = 1?
Break handling
No
DR = 1?
Read receive data in SCFRDR2
Clear DR, ER, BRK flags
in SCFSR2,
and ORER flag in SCLSR2, to 0
Figure 16.11 Sample Serial Reception Flowchart (2)
Yes
Yes
Yes
Yes
End
1. Whether a framing error or parity error
has occurred in the receive data read
from SCFRDR2 can be ascertained
from the FER and PER bits in
SCFSR2.
2. When a break signal is received,
receive data is not transferred to
SCFRDR2 while the BRK flag is set.
However, note that the last data in
SCFRDR2 is H'00 (the break data in
which a framing error occurred is
stored).
Rev. 4.0, 04/00, page 603 of 850
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