HD64F3694HV Datasheet, PDF (240/452 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

Section 14 Serial Communication Interface 3 (SCI3)
Table 14.5 shows the states of the SSR status flags and receive data handling when a receive error
is detected. If a receive error is detected, the RDRF flag retains its state before receiving data.
Reception cannot be resumed while a receive error flag is set to 1. Accordingly, clear the OER,
FER, PER, and RDRF bits to 0 before resuming reception. Figure 14.8 shows a sample flowchart
for serial data reception.
Table 14.5 SSR Status Flags and Receive Data Handling
SSR Status Flag
RDRF* OER
FER
PER
Receive Data
Receive Error Type
1
1
0
0
Lost
Overrun error
0
0
1
0
Transferred to RDR Framing error
0
0
0
1
Transferred to RDR Parity error
1
1
1
0
Lost
Overrun error + framing error
1
1
0
1
Lost
Overrun error + parity error
0
0
1
1
Transferred to RDR Framing error + parity error
1
1
1
1
Lost
Overrun error + framing error +
parity error
Note: * The RDRF flag retains the state it had before data reception.
Rev.5.00 Nov. 02, 2005 Page 210 of 418
REJ09B0028-0500