Table 12.11 Ssr Status Flags And Receive Data Handling - Renesas H8SX/1520 Series Hardware Manual

Table 12.11 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 12.9 shows a sample
flowchart for serial data reception.

Table 12.11 SSR Status Flags and Receive Data Handling

RDRF* ORER
1 1
0 0
0 0
1 1
1 1
0 0
1 1
Note: The RDRF flag retains the state it had before data reception.
*
Downloaded from Elcodis.com electronic components distributor
SSR Status Flag
FER PER
0 0
1 0
0 1
1 0
0 1
1 1
1 1
Section 12 Serial Communication Interface (SCI)
Receive Data Receive Error Type
Lost
Transferred to RDR Framing error
Transferred to RDR Parity error
Lost
Lost
Transferred to RDR Framing error + parity error
Lost
parity error
Rev. 3.00 Mar. 14, 2006 Page 413 of 804
Overrun error
Overrun error + framing error
Overrun error + parity error
Overrun error + framing error +
REJ09B0104-0300