SH7144 Datasheet, PDF (415/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Table 13.3 BRR Settings for Various Bit Rates (Asynchronous Mode) (3)
Logical
Bit Rate
(bit/s) n
110
2
150
2
300
2
600
1
1200
1
2400
1
4800
0
9600
0
14400 0
19200 0
28800 0
31250 0
38400 0
24
Error
N (%)
212 0.03
155 0.16
77 0.16
155 0.16
77 0.16
38 0.16
155 0.16
77 0.16
51 0.16
38 0.16
25 0.16
23 0.00
19 –2.34
Operating Frequency Pφ (MHz)
25
26
28
nN
Error
(%)
nN
Error
(%)
nN
Error
(%)
2 221 –0.02 2 230 –0.08 2 248 –0.17
2 162 –0.15 2 168 0.16 2 181 0.16
2 80 0.47 2 84 –0.43 2 90 0.16
1 162 –0.15 1 168 0.16 1 181 0.16
1 80 0.47 1 84 –0.43 1 90 0.16
1 40 –0.76 1 41 0.76 1 45 –0.93
0 162 –0.15 0 168 0.16 0 181 0.16
0 80 0.47 0 84 –0.43 0 90 0.16
0 53 0.47 0 55 0.76 0 60 –0.39
0 40 –0.76 0 41 0.76 0 45 –0.93
0 26 0.47 0 27 0.76 0 29 1.27
0 24 0.00 0 25 0.00 0 27 0.00
0 19 1.73 0 20 0.76 0 22 –0.93
30
nN
Error
(%)
3 66 –0.62
2 194 0.16
2 97 –0.35
2 48 –0.35
1 97 –0.35
1 48 –0.35
0 194 0.16
0 97 –0.35
0 64 0.16
0 48 –0.35
0 32 –1.36
0 29 0.00
0 23 1.73
Table 13.3 BRR Settings for Various Bit Rates (Asynchronous Mode) (4)
Operating Frequency Pφ (MHz)
Logical
Bit Rate
(bit/s) n
32
Error
N (%)
34
nN
Error
(%)
36
nN
Error
(%)
38
nN
Error
(%)
110
3 70 0.03 3 74 0.62 3 79 –0.12 3 83 0.40
150
2 207 0.16 2 220 0.16 2 233 0.16 2 246 0.16
300
2 103 0.16 2 110 –0.29 2 116 0.16 2 123 –0.24
600
2 51 0.16 2 54 0.62 2 58 –0.69 2 61 –0.24
1200
1 103 0.16 1 110 –0.29 1 116 0.16 1 123 –0.24
2400
1 51 0.16 1 51 6.42 1 58 –0.69 1 61 –0.24
4800
0 207 0.16 0 220 0.16 0 234 –0.27 0 246 0.16
9600
0 103 0.16 0 110 –0.29 0 116 0.16 0 123 –0.24
14400 0 68 0.64 0 73 –0.29 0 77 0.16 0 81 0.57
19200 0 51 0.16 0 54 0.62 0 58 –0.69 0 61 –0.24
28800 0 34 –0.79 0 36 –0.29 0 38 0.16 0 40 0.57
31250 0 31 0.00 0 33 0.00 0 35 0.00 0 37 0.00
38400 0 25 0.16 0 27 –1.18 0 28 1.02 0 30 –0.24
Note: Settings with an error of 1% or less are recommended.
40
nN
Error
(%)
3 88 –0.25
3 64 0.16
2 129 0.16
2 64 0.16
1 129 0.16
1 64 0.16
1 32 –1.36
0 129 0.16
0 86 –0.22
0 64 0.16
0 42 0.94
0 39 0.00
0 32 –1.36
Rev. 2.0, 09/02, page 375 of 732