SH7125 Datasheet, PDF (445/782 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer

Section 12 Serial Communication Interface (SCI)
Initial
Bit
Bit Name value R/W Description
4
FER
0
R/(W)* Framing Error
Indicates that a framing error occurred during data
reception in asynchronous mode, causing abnormal
termination.
0: Indicates that reception is in progress or was
completed successfully*¹
[Clearing conditions]
• By a power-on reset or in standby mode
• When 0 is written to FER after reading FER = 1
1: Indicates that a framing error occurred during
reception
[Setting condition]
• When the SCI founds that the stop bit at the end
of the received data is 0 after completing
reception*²
Notes: 1. The FER flag is not affected and retains
its previous value when the RE bit in
SCSCR is cleared to 0.
2. In 2-stop-bit mode, only the first stop bit is
checked for a value to 1; the second stop
bit is not checked. If a framing error
occurs, the receive data is transferred to
SCRDR but the RDRF flag is not set.
Subsequent serial reception cannot be
continued while the FER flag is set to 1.
Rev. 3.00 Sep. 27, 2007 Page 425 of 758
REJ09B0243-0300