D12320VF25V Datasheet, PDF (484/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 12 Serial Communication Interface (SCI)
Table 12.3 BRR Settings for Various Bit Rates (Asynchronous Mode)
Bit Rate
(bits/s)
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
φ = 2 MHz
φ = 2.097152 MHz
φ = 2.4576 MHz
Error
Error
Error
n
N
(%) n
N
(%) n
N
(%) n
1
141 0.03 1
148 –0.04 1
174 –0.26 1
1
103 0.16 1
108 0.21 1
127 0.00 1
0
207 0.16 0
217 0.21 0
255 0.00 1
0
103 0.16 0
108 0.21 0
127 0.00 0
0
51 0.16 0
54 –0.70 0
63 0.00 0
0
25 0.16 0
26 1.14 0
31 0.00 0
0
12 0.16 0
13 –2.48 0
15 0.00 0
0
6
—0
6
–2.48 0
7
0.00 0
0
2
—0
2
—0
3
0.00 0
0
1
0.00 0
1
—0
1
—0
0
1
—0
1
—0
1
0.00 —
φ = 3 MHz
Error
N
(%)
212 0.03
155 0.16
77 0.16
155 0.16
77 0.16
38 0.16
19 –2.34
9
–2.34
4
–2.34
2
0.00
——
Bit Rate
(bits/s)
110
150
300
600
1200
2400
4800
9600
19200
31250
38400
φ = 3.6864 MHz
Error
n
N
(%) n
2
64 0.70 2
1
191 0.00 1
1
95 0.00 1
0
191 0.00 0
0
95 0.00 0
0
47 0.00 0
0
23 0.00 0
0
11 0.00 0
0
5
0.00 0
———0
0
2
0.00 0
φ = 4 MHz
φ = 4.9152 MHz
Error
Error
N
(%) n
N
(%) n
70 0.03 2
207 0.16 1
103 0.16 1
207 0.16 0
103 0.16 0
51 0.16 0
25 0.16 0
12 0.16 0
6
—0
3
0.00 0
2
—0
86 0.31 2
255 0.00 2
127 0.00 1
255 0.00 1
127 0.00 0
63 0.00 0
31 0.00 0
15 0.00 0
7
0.00 0
4
–1.70 0
3
0.00 0
φ = 5 MHz
Error
N
(%)
88 –0.25
64 0.16
129 0.16
64 0.16
129 0.16
64 0.16
32 –1.36
15 1.73
7
1.73
4
0.00
3
1.73
Rev.7.00 Feb. 14, 2007 page 450 of 1108
REJ09B0089-0700