Section 15
Serial Communication Interface (SCI)
Rev. 1.00 Apr. 28, 2008 Page 421 of 994
REJ09B0452-0100
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
Содержание H8S/2100 Series
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Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
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