HD6432633 Datasheet, PDF (843/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

Start
Initialization
Start transmission
No
ERS=0?
Yes
No
TEND=1?
Yes
Write data to TDR,
and clear TDRE flag
in SSR to 0
No
All data transmitted?
Yes
No
ERS=0?
Yes
No
TEND=1?
Yes
Clear TE bit to 0
End
Error processing
Error processing
Figure 17-4 Example of Transmission Processing Flow
789