SH7011 Datasheet, PDF (233/292 Pages) Renesas Technology Corp – CMOS single-chip microprocessors

Initialization
Start reception
Set MPIE bit in SCR to 1
(1)
Read ORER and FER bits of SSR
FER = 1?
Yes
or ORER =1?
No
Read RDRF bit in SSR
(2)
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
(4)
RDRF = 1?
No
Yes
Read receive data from RDR
No
All data received?
Yes
Clear RE bit in SCR to 0
End reception
(3)
Error processing
Figure 12.11 Sample Flowchart for Receiving Multiprocessor Serial Data
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