Renesas RX100 Series User Manual page 617

RX13T Group
BRME Bit (Bit Rate Modulation Enable)
Enables and disables the bit rate modulation function. The bit rate generated by on-chip baud rate generator is evenly
corrected when this function is enabled.
NFEN Bit (Digital Noise Filter Function Enable)
This bit enables or disables the digital noise filter function.
When the function is enabled, noise cancellation is applied to the RXDn input signal in asynchronous mode, and noise
cancellation is applied to the SSDAn and SSCLn input signals in simple I
In any mode other than above, set the NFEN bit to 0 to disable the digital noise filter function.
When the function is disabled, input signals are transferred as is, as internal signals.
BGDM Bit (Baud Rate Generator Double-Speed Mode Select)
Selects the cycle of output clock for the baud rate generator.
This bit is valid when the on-chip baud rate generator is selected as the clock source (SCR.CKE[1] = 0) in asynchronous
mode (SMR.CM = 0). For the clock output from the baud rate generator, either normal or doubled frequency can be
selected. The base clock is generated by the clock output from the baud rate generator. When the BGDM bit is set to 1,
the base clock cycle is halved and the bit rate is doubled.
Set this bit to 0 in modes other than asynchronous mode.
RXDESEL Bit (Asynchronous Start Bit Edge Detection Select)
Selects the detection method of the start bit for reception in asynchronous mode. When a break occurs, data receiving
operation depends on the settings of this bit. Set this bit to 1 when reception should be stopped while a break occurs or
when reception should be started without retaining the RXDn pin input at high level for the period of one data frame or
longer after completion of the break.
Set this bit to 0 in modes other than asynchronous mode.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
23. Serial Communications Interface (SCIg, SCIh)
2
C mode.
Page 617 of 1041