HD64F2168 Datasheet, PDF (453/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Start
Initialization
Start transmission
No
ERS = 0?
Yes
No
TEND = 1?
Yes
Write data to TDR and clear
TDRE flag in SSR to 0
Error processing
No
All data transmitted?
Yes
No
ERS = 0?
Yes
No
TEND = 1?
Yes
Clear TE bit in SCR to 0
Error processing
End
Figure 14.31 Sample Transmission Flowchart
Rev. 3.00, 03/04, page 413 of 830