Renesas SH7641 - Manual (Page 747)

Section 19 Serial Communication Interface with FIFO (SCIF)
Rev. 4.00 Sep. 14, 2005 Page 697 of 982
REJ09B0023-0400
Bit Bit Name
Initial
value R/W
Description
4 RE 0 R/W Receive Enable
Enables or disables the SCIF serial receiver.
0: Receiver disabled* 1
1: Receiver enabled* 2
Notes: 1. Clearing RE to 0 does not affect the receive
flags (DR, ER, BRK, RDF, FER, PER, and
ORER). These flags retain their previous
values.
2. Serial reception starts when a start bit is
detected in asynchronous mode, or
synchronous clock input is detected in
synchronous mode. Select the receive format
in SCSMR and SCFCR and reset the receive
FIFO before setting RE to 1.
3 REIE 0 R Receive Error Interrupt Enable
Enables or disables the receive-error (ERI) interrupts
and break (BRI) interrupts. The setting of REIE bit is
valid only when RIE bit is set to 0.
0: Receive-error interrupt (ERI) and break interrupt
(BRI) requests are disabled
1: Receive-error interrupt (ERI) and break interrupt
(BRI) requests are enabled*
Note: * 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. Even if RIE is set
to 0, when REIE is set to 1, ERI or BRI
interrupt requests are enabled. Set so If SCIF
wants to inform INTC of ERI or BRI interrupt
requests during DMA transfer.