HD6413007F20 Datasheet, PDF (509/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Serial clock
13. Serial Communication Interface
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 13.19 Example of SCI Receive Operation
Rev.5.00 Sep. 12, 2007 Page 479 of 764
REJ09B0396-0500