HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 613

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

600
Figure 14.14 Sample Multiprocessor Serial Reception Flowchart (2)
No
No
No
No
No
Read receive data from SCFRDR
Clear RE bit to 0 in SCSCR
Clear ORER, BRK, DR,
Overrun error handling
Framing error handling
and ER flags to 0
Error handling
All data read?
ORER = 1?
BRK = 1?
FER = 1?
DR = 1?
End
Yes
Yes
Yes
Yes
Yes
1
2
1. Whether a framing error has
2. When a break signal is received,
occurred in the receive data read
from SCFRDR can be ascertained
from the FER bit in SC1SSR.
receive data is not transferred to
SCFRDR while the BRK flag is
set. However, note that the last
data in SCFRDR is H'00 and the
break data in which a framing
error occurred is stored. However,
note that the H'00 break data in
which a framing error occurred is
stored as the last data in
SCFRDR.