RX610 Group
20. Serial Communications Interface (SCI)
R01UH0032EJ0120 Rev.1.20
Page 633 of 1006
Feb 20, 2013
SCMR Setting
SMR Setting
Base Clock
S
BCP2 Bit
BCP[1:0] bps
0
0 0
93 clock cycles
93
0
0 1
128 clock cycles
128
0
1 0
186 clock cycles
186
0
1 1
512 clock cycles
512
1
0 0
32 clock cycles
32
1
0 1
64 clock cycles
64
1
1 0
372 clock cycles
372
1
1 1
256 clock cycles
256
Tables 20.6 shows sample N settings in BRR in normal asynchronous mode. Table 20.7 shows the maximum bit rate
settable for each operating frequency. Tables 20.9 and 20.11 show sample N settings in BRR in clock synchronous mode
and smart card interface mode, respectively. In smart card interface mode, the number of base clock cycles S in a 1-bit
data transfer time can be selected. For details, see section 20.5.4, Receive Data Sampling Timing and Reception Margin.
Tables 20.8 and 20.10 show the maximum bit rates with external clock input.
When the ABCS bit in the serial extended mode register (SEMR) is set to 1 in asynchronous mode, the bit rate is two
times that of shown in table 20.6.