HD6413008VF25 Datasheet, PDF (421/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Figure 12.19 shows an example of SCI receive operation.
12. Serial Communication Interface
Serial clock
Serial data
Bit 7 Bit 0
Bit 7 Bit 0 Bit 1
Bit 6 Bit 7
RDRF
ORER
RXI interrupt
request
RXI interrupt handler
reads data in RDR and
clears RDRF flag to 0
RXI interrupt
request
Overrun error,
ERI interrupt
request
1 frame
Figure 12.19 Example of SCI Receive Operation
Rev.4.00 Aug. 20, 2007 Page 375 of 638
REJ09B0395-0400