HD6417034 Datasheet, PDF (415/691 Pages) Renesas Technology Corp – SuperH RISC ENGINE SH7032 AND SH7034

Initialize
(1)
Start transmitting
Read TDRE bit in SSR
(2)
No
TDRE = 1?
Yes
Write transmit data in TDR and
clear TDRE bit to 0 in SSR
(3)
No
All data transmitted?
Yes
Read TEND bit in SSR
No
TEND = 1?
Yes
Output break signal?
Yes
Set DR = 0
No
(4)
Clear TE bit of SCR to 0;
Select theTxD pin function
as an output port with the PFC
Transmission ends
Figure 13.5 Sample Flowchart for Transmitting Serial Data
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