Datasheet

Section 15 Serial Communication Interface (SCI)
Rev. 3.00 Sep. 28, 2009 Page 420 of 910
REJ09B0350-0300
Table 15.4 Examples of BRR Settings for Various Bit Rates (Asynchronous Mode) (2)
Operating Frequency φ (MHz)
17.2032 18 19.6608 20
Bit Rate
(bit/s) n N
Error
(%) n N
Error
(%) n N
Error
(%) n N
Error
(%)
110 3 75 0.48 3 79 –0.12 3 86 0.31 3 88 –0.25
150 2 223 0.00 2 233 0.16 2 255 0.00 3 64 0.16
300 2 111 0.00 2 116 0.16 2 127 0.00 2 129 0.16
600 1 223 0.00 1 233 0.16 1 255 0.00 2 64 0.16
1200 1 111 0.00 1 116 0.16 1 127 0.00 1 129 0.16
2400 0 223 0.00 0 233 0.16 0 255 0.00 1 64 0.16
4800 0 111 0.00 0 116 0.16 0 127 0.00 0 129 0.16
9600 0 55 0.00 0 58 –0.69 0 63 0.00 0 64 0.16
19200 0 27 0.00 0 28 1.02 0 31 0.00 0 32 –1.36
31250 0 16 1.20 0 17 0.00 0 19 –1.70 0 19 0.00
38400 0 16 0.00 0 14 –2.34 0 15 0.00 0 15 1.73
[Legend]
⎯: Can be set, but there will be a degree of error.
Note: * Make the settings so that the error does not exceed 1%.
Table 15.5 Maximum Bit Rate for Each Frequency (Asynchronous Mode)
φ (MHz)
Maximum
Bit Rate
(bit/s) n N φ (MHz)
Maximum Bit
Rate (bit/s) n N
8 250000 0 0 14.7456 460800 0 0
9.8304 307200 0 0 16 500000 0 0
10 312500 0 0 17.2032 537600 0 0
12 375000 0 0 18 562500 0 0
12.288 384000 0 0 19.6608 614400 0 0
14 437500 0 0 20 625000 0 0