SH7280 Datasheet, PDF (903/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 17 Serial Communication Interface with FIFO (SCIF)
Figure 17.15 shows an example of SCIF receive operation.
Serial clock
Serial data
RDF
ORER
Bit 7
LSB
Bit 0
MSB
Bit 7
Bit 0
Bit 1
Bit 6
Bit 7
RXI
interrupt
request
Data read from SCFRDR and
RDF flag cleared to 0 by RXI
interrupt handler
One frame
RXI
interrupt
request
Figure 17.15 Example of SCIF Receive Operation
BRI interrupt request
by overrun error
Rev. 1.00 Jun. 26, 2008 Page 873 of 1692
REJ09B0393-0100