RX610 Group
20. Serial Communications Interface (SCI)
R01UH0032EJ0120 Rev.1.20
Page 621 of 1006
Feb 20, 2013
CKE[1:0] Bits (Clock Enable)
These bits select the clock source and SCKn pin function.
TEIE Bit (Transmit End Interrupt Enable)
Enables or disables a TEI interrupt request.
A TEI interrupt request is disabled by clearing the TEIE bit to 0.
RE Bit (Receive Enable)
Enables or disables serial reception.
When this bit is set to 1, serial reception is started by detecting the start bit in asynchronous mode or the synchronous
clock input in clock synchronous mode. Note that SMR should be set prior to setting the RE bit to 1 in order to designate
the reception format.
Even if reception is halted by clearing the RE bit to 0, the ORER, FER, and PER flags in SSR are not affected and the
previous value is retained.
TE Bit (Transmit Enable)
Enables or disables serial transmission.
When this bit is set to 1, serial transmission is started by writing transmit data to TDR. Note that SMR should be set prior
to setting the TE bit to 1 in order to designate the transmission format.
RIE Bit (Receive Interrupt Enable)
Enables or disables RXI and ERI interrupt requests.
An RXI interrupt request is disabled by clearing the RIE bit to 0.
An ERI interrupt request can be cancelled by reading 1 from the ORER, FER, or PER flag in SSR and then clearing the
flag to 0, or clearing the RIE bit to 0.
TIE Bit (Transmit Interrupt Enable)
Enables or disables notification of a TXI interrupt request.
Notification of a TXI interrupt request is disabled by clearing the TIE bit to 0.