SH7055S Datasheet, PDF (544/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Initialization
1
Start of transmission
Read TDRE flag in SSR
2
No
TDRE = 1?
Yes
Write transmit data in TDR and
clear TDRE flag to 0 in SSR
All data transmitted?
Yes
Read TEND flag in SSR
TEND = 1?
Yes
Clear TE bit to 0 in SCR
No
3
No
End
Figure 15.19 Sample Flowchart for Serial Transmitting
Rev.2.0, 07/03, page 506 of 960