SH7709S Datasheet, PDF (514/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Start of reception
Set MPIE bit in SCSCR to 1 ⁽¹⁾
Read ORER and FER
bits in SCSSR
FER = 1 or ORER = 1?
Yes
No
Read RDRF bit in SCSSR (2)
No
RDRF = 1?
Yes
Read receive data from SCRDR
No
Is ID the
station's ID?
Yes
Read ORER and FER
bits in SSCSR
FER = 1 or ORER = 1?
Yes
No
Read RDRF bit in SCSSR (4)
RDRF = 1?
No
Yes
Read receive data from SCRDR
No
All data received?
Yes
Clear RE bit in SCSCR to 0
(3)
Error handling
End of reception
Note: Numbers in parentheses refer to steps in the preceding procedure description.
Figure 14.15 Sample Flowchart for Receiving Multiprocessor Serial Data
Rev. 5.00, 09/03, page 470 of 760