Datasheet

515
TDRE = 1?
Write transmit data in TDR 
and set MPBT in SSR
All data transmitted?
Yes
TEND = 1?
Read TEND bit in SSR
Output break signal?
Yes
Set DR = 0
Clear TE bit in SCR to 0; 
select theTxD pin function as
an output port with the PFC
End transmission
Yes
Read TDRE bit in SSR
Clear TDRE bit to 0
Initialization
No
No
Yes
No
No
1
2
3
4
Start transmission
Figure 14.11 Sample Flowchart for Transmitting Multiprocessor Serial Data