HD64F2145 Datasheet, PDF (391/829 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Table 15.3 BRR Settings for Various Bit Rates (Asynchronous Mode)
Bit Rate
(bit/s)
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
2
Error
n N (%)
1 141 0.03
1 103 0.16
0 207 0.16
0 103 0.16
0 51 0.16
0 25 0.16
0 12 0.16
—— —
—— —
0 1 0.00
—— —
Operating Frequency ø (MHz)
2.097152
2.4576
nN
Error
(%)
nN
Error
(%)
1 148 –0.04 1 174 –0.26
1 108 0.21
1 127 0.00
0 217 0.21
0 255 0.00
0 108 0.21
0 127 0.00
0 54 –0.70 0 63 0.00
0 26 1.14
0 31 0.00
0 13 –2.48 0 15 0.00
0 6 –2.48 0 7 0.00
—— —
0 3 0.00
—— —
—— —
—— —
0 1 0.00
3
Error
n N (%)
1 212 0.03
1 155 0.16
1 77 0.16
0 155 0.16
0 77 0.16
0 38 0.16
0 19 –2.34
0 9 –2.34
0 4 –2.34
0 2 0.00
—— —
Operating Frequency ø (MHz)
3.6864
4
4.9152
5
Bit Rate
Error
Error
Error
Error
(bit/s)
n N (%)
n N (%)
n N (%)
n N (%)
110
2 64 0.70
2 70 0.03
2 86 0.31 2 88 –0.25
150
1 191 0.00
1 207 0.16
1 255 0.00 2 64 0.16
300
1 95 0.00
1 103 0.16
1 127 0.00 1 129 0.16
600
0 191 0.00
0 207 0.16
0 255 0.00 1 64 0.16
1200
0 95 0.00
0 103 0.16
0 127 0.00 0 129 0.16
2400
0 47 0.00
0 51 0.16
0 63 0.00 0 64 0.16
4800
0 23 0.00
0 25 0.16
0 31 0.00 0 32 –1.36
9600
0 11 0.00
0 12 0.16
0 15 0.00 0 15 1.73
19200
0 5 0.00
—— —
0 7 0.00 0 7 1.73
31250
—— —
0 3 0.00
0 4 –1.70 0 4 0.00
38400
0 2 0.00
—— —
0 3 0.00 0 3 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%.
Rev. 2.0, 08/02, page 351 of 788