Renesas SH7781 User Manual

Page 1086

21. Serial Communication Interface with FIFO (SCIF)

Rev.1.00 Jan. 10, 2008 Page 1056 of 1658
REJ09B0261-0100

Bit Bit

Name

Initial
Value R/W

Description

7 ER 0 R/W*

Receive Error
Indicates that a framing error or parity error occurred
during reception. The ER flag is not affected and
retains its previous state when the RE bit in SCSCR is
cleared to 0. When a receive error occurs, the receive
data is still transferred to SCFRDR, and reception
continues.
The FER and PER bits in SCFSR can be used to
determine whether there is a receive error in the
readout data from SCFRDR.
0: No framing error or parity error occurred during

reception

[Clearing conditions]
• Power-on reset or manual reset
• When 0 is written to ER after reading ER = 1
1: A framing error or parity error occurred during

reception

[Setting conditions]
• When the SCIF checks whether the stop bit at the

end of the receive data is 1 when reception ends,
and the stop bit is 0*

• When, in reception, the number of 1-bits in the

receive data plus the parity bit does not match the
parity setting (even or odd) specified by the O/

E bit

in SCSMR.

6 TEND

1 R/W*

Transmit End
Indicates that transmission has been ended without
valid data in SCFTDR on transmission of the last bit of
the transmit character.
0: Transmission is in progress

[Clearing conditions]
• When transmit data is written to SCFTDR, and 0 is

written to TEND after reading TEND = 1

• When data is written to SCFTDR by the DMAC
1: Transmission has been ended

[Setting conditions]
• Power-on reset or manual reset
• When the TE bit in SCSCR is 0
• When there is no transmit data in SCFTDR on

transmission of the last bit of a 1-byte serial
transmit character