Renesas H8S/2100 Series Hardware Manual page 441

Start
Initialization
Start transmission
ERS = 0
Yes
No
TEND = 1
Yes
Write data to TDR and clear
TDRE flag in SSR to 0
No
All data transmitted
Yes
ERS = 0
Yes
No
TEND = 1
Yes
Clear TE bit in SCR to 0
End
Figure 14.28 Sample Transmission Flowchart
Section 14 Serial Communication Interface (SCI)
No
Error processing
No
Error processing
Rev. 1.00 May 09, 2008 Page 415 of 954
REJ09B0462-0100