SH7050 Datasheet, PDF (431/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 13 Serial Communication Interface (SCI)
Initialization
1
Start reception
Set MPIE bit in SCR to 1
2
Read ORER and FER bits of SSR
FER = 1?
Yes
or ORER =1?
No
Read RDRF bit in SSR
3
No
RDRF = 1?
Yes
Read receive data from RDR
No
Is ID the station’s ID
Yes
Read ORER and FER bits in SSR
FER = 1?
Yes
or ORER =1?
No
Read RDRF bit of SSR
5
No
RDRF = 1?
Yes
Read receive data from RDR
No
All data received?
Yes
Clear RE bit in SCR to 0
End reception
4
Error processing
Figure 13.13 Sample Flowchart for Receiving Multiprocessor Serial Data
Rev. 5.00 Jan 06, 2006 page 411 of 818
REJ09B0273-0500