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Section 13 Serial Communication Interface
Figure 13.19 shows an example of SCI receive operation.
Serial clock
Serial data
Bit 7
RDRF
ORER
RXI interrupt
request
Rev. 4.00 Jan 26, 2006 page 532 of 938
REJ09B0276-0400
Bit 0
RXI interrupt handler
reads data in RDR and
clears RDRF flag to 0
1 frame
Figure 13.19 Example of SCI Receive Operation
Bit 7
Bit 0
Bit 1
RXI interrupt
request
Bit 6
Bit 7
Overrun error,
ERI interrupt
request
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