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Section 8 RAM-FIFO Unit (RFU)
Prepare transmit data in RAM
Set TDRE_DTE in SCIDTER to 1
Set TE in SCR to 1
TDRE_DTE in SCIDTER are
automatically cleared to 0
Rev. 3.00 Jan 25, 2006 page 198 of 872
REJ09B0286-0300
Initialize the RFU
Initialize the SCI
RFU activation request
Overread RAM
data?
Yes
TEND = 1
Yes
End
Figure 8.8 Operation Flow of SCI Transmission
No
Transfer transmit data from RAM to TDR
Start transmission
TDRE = 1
Yes
No
No
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