Datasheet

518
RDRF = 1?
FER = 1?
or ORER =1?
RDRF = 1?
All data received?
No
End reception
Yes
Set MPIE bit in SCR to 1
Read RDRF bit of SSR
Initialization
Clear RE bit in SCR to 0
Yes
No
1
2
3
Read ORER and FER bits of SSR
FER = 1?
or ORER =1?
Read RDRF bit in SSR
Read receive data from RDR
Is ID the station’s ID
No
Read ORER and FER bits in SSR
Read receive data from RDR
No
Error processing
No
Yes
5
4
Yes
Yes
No
Yes
Start reception

Figure 14.13 Sample Flowchart for Receiving Multiprocessor Serial Data