R5S72611 RENESAS [Renesas Technology Corp], R5S72611 Datasheet - Page 755
R5S72611
Manufacturer Part Number
R5S72611
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R5S72611.pdf
(1348 pages)
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In serial reception, the SCIF operates as described below.
1. The SCIF synchronizes with serial clock input or output and starts the reception.
2. Receive data is shifted into SCRSR in order from the LSB to the MSB. After receiving the
3. After setting RDF to 1, if the receive-data-full interrupt enable bit (RIE) is set to 1 in SCSCR,
Figure 16.15 shows an example of SCIF receive operation.
data, the SCIF checks the receive data can be loaded from SCRSR into SCFRDR or not. If this
check is passed, the RDF flag is set to 1 and the SCIF stores the received data in SCFRDR. If
the check is not passed (overrun error is detected), further reception is prevented.
the SCIF requests a receive-data-full interrupt (RXI). If the ORER bit is set to 1 and the
receive-data-full interrupt enable bit (RIE) or the receive error interrupt enable bit (REIE) in
SCSCR is also set to 1, the SCIF requests a break interrupt (BRI).
Serial clock
Serial data
RDF
ORER
Figure 16.14 Sample Flowchart for Receiving Serial Data (2)
Figure 16.15 Example of SCIF Receive Operation
RXI
interrupt
request
Bit 7
LSB
No
Data read from SCFRDR and
RDF flag cleared to 0 by RXI
interrupt handler
Bit 0
Clear ORER flag in SCLSR to 0
One frame
Overrun error handling
Section 16 Serial Communication Interface with FIFO (SCIF)
Error handling
ORER = 1?
Bit 7
MSB
End
Yes
Bit 0
RXI
interrupt
request
Rev. 2.00 Sep. 07, 2007 Page 723 of 1312
Bit 1
Bit 6
BRI interrupt request
by overrun error
Bit 7
REJ09B0320-0200
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