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Section 13 Serial Communication Interface (SCI)
Table 13.3 Examples of BRR Settings for Various Bit Rates (Asynchronous Mode)
Bit Rate (bit/s) n
110
3
150
3
300
2
600
2
1200
1
2400
1
4800
0
9600
0
19200
0
31250
0
38400
0
[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 13.4 Maximum Bit Rate for Each Frequency (Asynchronous Mode)
φ (MHz)
20
25
34
Table 13.5 Maximum Bit Rate with External Clock Input (Asynchronous Mode)
φ (MHz)
20
25
34
Rev. 1.00 Mar. 12, 2008 Page 446 of 1178
REJ09B0403-0100
Operating Frequency φ (MHz)
20
N
Error (%)
88
–0.25
64
0.16
129
0.16
64
0.16
129
0.16
64
0.16
129
0.16
64
0.16
32
–1.36
19
0.00
15
1.73
Maximum Bit Rate (bit/s)
625000
781250
1062500
External Input Clock (MHz)
5.0000
6.2500
8.0000
25
n
N
Error (%)
3
110
–0.02
3
80
–0.47
2
162
0.15
2
80
–0.47
1
162
0.15
1
80
–0.47
0
162
0.15
0
80
–0.47
0
40
–0.76
0
24
0.00
0
19
1.73
n
0
0
0
Maximum Bit Rate (bit/s)
312500
390625
531250
34
n
N
Error (%)
3
150
–0.05
3
110
–0.29
2
220
0.16
2
110
–0.29
1
220
0.16
1
110
–0.29
0
220
0.16
0
110
–0.29
0
54
0.62
0
33
0.00
0
27
–1.18
N
0
0
0
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