p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 377

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 15.9 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 ORER,
FER, PER, and RDRF bits to 0 before resuming reception. Figure 15.9 shows a sample flow chart
for serial data reception.
Table 15.9 SSR Status Flags and Receive Data Handling
Note:
RDRF*
1
0
0
1
1
0
1
*
ORER
1
0
0
1
1
0
1
The RDRF flag retains the state it had before data reception.
SSR Status Flag
FER
0
1
0
1
0
1
1
PER
0
0
1
0
1
1
1
Receive Data
Lost
Transferred to RDR
Transferred to RDR
Lost
Lost
Transferred to RDR
Lost
Section 15 Serial Communication Interface (SCI)
Rev. 1.00 Sep. 21, 2006 Page 339 of 658
Receive Error Type
Overrun error
Framing error
Parity error
Overrun error + framing error
Overrun error + parity error
Framing error + parity error
Overrun error + framing error
+ parity error
REJ09B0310-0100