HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 692

• 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 630 of 1458
REJ09B0033-0300
Serial Communication Interface with FIFO (SCIF)
Write transmit data exceeding transmit
Set transmit trigger number in TTRG1
TDFE flag to 0 after reading 1 from it
Figure 18.14
trigger setting number, and clear
When using transmit FIFO data
Clear TE bit in SCSCR to 0
interrupt, set TIE bit to 1
and TTRG0 in SCFCR
1-bit interval elapsed?
Set TE bit in SCSCR
Start of transmission
End of transmission
TEND =1?
(Second and Subsequent Transmission)
Yes
Yes
Sample Serial Transmission Flowchart (2)
No
Wait
No
1
2
3
4
5
1. Set the transmit trigger number
2. Write transmit data to SCFTDR,
3. Wait for one bit interval.
4. Transmission is started when the
5. After the end of transmission, clear
in SCFCR.
and clear the TDFE flag to 0 after
reading 1 from it.
TE bit in SCSCR is set to 1.
the TE bit to 0.