SH7040 Datasheet, PDF (563/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

Initialize
1
Start transmitting
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 14.18 Sample Flowchart for Serial Transmitting
525