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Renesas SH7641 User Manual

Page 746

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Section 19 Serial Communication Interface with FIFO (SCIF)

Rev. 4.00 Sep. 14, 2005 Page 696 of 982

REJ09B0023-0400

Bit Bit

Name

Initial
value R/W

Description

6

RIE

0

R/W

Receive Interrupt Enable

Enables or disables the receive-data-full (RXI)
interrupts requested when the RDF flag or DR flag in
serial status register (SCFSR) is set to1, receive-error
(ERI) interrupts requested when the ER flag in SCFSR
is set to1, and break (BRI) interrupts requested when
the BRK flag in SCFSR or the ORER flag in line status
register (SCLSR) is set to1.

0: Receive-data-full interrupt (RXI), receive-error

interrupt (ERI), and break interrupt (BRI) requests
are disabled

1: Receive-data-full interrupt (RXI), receive-error

interrupt (ERI), and break interrupt (BRI) requests
are enabled*

Note: * RXI interrupt requests can be cleared by

reading the DR or RDF flag after it has been
set to 1, then clearing the flag to 0, or by
clearing RIE to 0. ERI or BRI interrupt requests
can be cleared by reading the ER, BR or
ORER flag after it has been set to 1, then
clearing the flag to 0, or by clearing RIE and
REIE to 0.

5 TE 0 R/W

Transmit

Enable

Enables or disables the SCIF serial transmitter.

0: Transmitter disabled

1: Transmitter enabled*

Note: * Serial transmission starts after writing of

transmit data into SCFTDR. Select the transmit
format in SCSMR and SCFCR and reset the
transmit FIFO before setting TE to 1.

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