SH7052 Datasheet, PDF (504/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

Initialization
1
Start of transmission
Read TDRE bit in SSR
2
No
TDRE = 1?
Yes
Write transmit data in TDR
and set MPBT in SSR
Clear TDRE bit to 0
All data transmitted?
Yes
Read TEND bit in SSR
No ₃
TEND = 1?
Yes
Output break signal?
Yes
Clear port DR to 0
No
No
4
Clear TE bit in SCR to 0;
select theTxD pin function as
an output port with the PFC
End of transmission
Figure 14.11 Sample Flowchart for Transmitting Multiprocessor Serial Data
478