Renesas H8S Series Hardware Manual page 526

Table 14-11 Receive Errors and Conditions for Occurrence
Receive Error
Overrun error
Framing error
Parity error
Figure 14-8 shows an example of the operation for reception in asynchronous mode.
1
RDRF
FER
Rev.6.00 Oct.28.2004 page 498 of 1016
REJ09B0138-0600H
Abbreviation
ORER
FER
PER
Start Data
bit
0 D0 D1 D7
1 frame
Figure 14-8 Example of SCI Operation in Reception
(Example with 8-Bit Data, Parity, One Stop Bit)
Occurrence Condition
When the next data reception is
completed while the RDRF flag
in SSR is set to 1
When the stop bit is 0
When the received data differs
from the parity (even or odd) set
in SMR
Parity Stop Start
bit bit bit
0/1 1 0 D0 D1
RXI interrupt RDR data read and RDRF
request flag cleared to 0 in RXI
generated interrupt service routine
Data Transfer
Receive data is not
transferred from RSR to
RDR.
Receive data is transferred
from RSR to RDR.
Receive data is transferred
from RSR to RDR.
Data Parity Stop
bit bit
Idle state
0
D7 0/1
(mark state)
ERI interrupt request
generated by framing
error
1