HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 694

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 18
Rev. 3.00 Jan. 18, 2008 Page 632 of 1458
REJ09B0033-0300
Serial Communication Interface with FIFO (SCIF)
When using receive FIFO data interrupt,
Read receive trigger number of receive
Set receive trigger number in RTRG1
Clear RFRST bit in SCFCR to 0
Figure 18.15
Set RFRST bit in SCFCR to 1
Clear RE bit in SCSCR to 0
data bytes from SCFRDR
and RTRG0 in SCFCR
1-bit interval elapsed?
Set RE bit in SCSCR
Start of reception
End of reception
set RIE bit to 1
RDF =1?
(Second and Subsequent Reception)
Yes
Yes
Sample Serial Reception Flowchart (2)
Wait
No
No
1
2
3
4
5
6
1. Set the receive trigger number
2. Reset the receive FIFO.
3. Wait for one bit interval.
4. Reception is started when the RE
5. Read receive data while the RDF
6. After the end of reception, clear the
in SCFCR.
bit in SCSCR is set to 1.
bit is 1.
RE bit to 0.