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SH7721 Datasheet(PDF) 691 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 691 Page - Renesas Technology Corp

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Section 18
Serial Communication Interface with FIFO (SCIF)
Rev. 3.00 Jan. 18, 2008 Page 629 of 1458
REJ09B0033-0300
(4)
Data Transfer Operations (Serial Data Transmission)
Figure 18.14 shows sample flowcharts for serial transmission.
No
Yes
1. Write the remaining transmit
data to SCFTDR.
2. Transmission is started when
the TE bit in SCSCR is set to 1.
3. After the end of transmission,
clear the TE bit to 0.
Start of transmission
Write remaining transmit data to SCFTDR
Set TE bit in SCSCR
When using transmit FIFO data interrupt,
set TIE bit to 1
TEND =1?
Clear TE bit in SCSCR to 0
End of transmission
1
2
3
Figure 18.14
Sample Serial Transmission Flowchart (1)
(First Transmission after Initialization)



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