CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U12688EJ4V0UM00
312
Table 10-2. Baud Rate Generator Setup Values
Baud Rate [bps]
φ
= 33 MHz
φ
= 25 MHz
φ
= 16 MHz
φ
= 12.5 MHz
UART0,
UART1
CSI0 to
CSI3
BPR
BRG
Error
BPR
BRG
Error
BPR
BRG
Error
BPR
BRG
Error
110
1,760
—
—
—
4
222
0.02%
4
142
0.03%
3
222
0.02%
150
2,400
4
215
0.07%
4
163
0.15%
3
208
0.16%
3
163
0.15%
300
4,800
3
215
0.07%
3
163
0.15%
2
208
0.16%
2
163
0.15%
600
9,600
2
215
0.07%
2
163
0.15%
1
208
0.16%
1
163
0.15%
1,200
19,200
1
215
0.07%
1
163
0.15%
0
208
0.16%
0
163
0.15%
2,400
38,400
0
215
0.07%
0
163
0.15%
0
104
0.16%
0
81
0.47%
4,800
768,00
0
107
0.39%
0
81
0.47%
0
52
0.16%
0
41
0.76%
9,600
153,600
0
54
0.54%
0
41
0.76%
0
26
0.16%
0
20
1.73%
10,400
166,400
0
50
0.84%
0
38
1.16%
0
24
0.16%
0
19
1.16%
19,200
307,200
0
27
0.54%
0
20
1.73%
0
13
0.16%
0
10
1.73%
38,400
614,400
0
13
3.29%
0
10
1.73%
0
7
6.99%
Note
0
5
1.73%
76,800
1,228,800
0
7
4.09%
0
5
1.73%
—
—
—
0
3
15.2%
Note
153,600
2,457,600
0
3
11.90%
Note
0
2
27.2%
Note
—
—
—
—
—
—
Baud Rate [bps]
φ
= 40 MHz
φ
= 20 MHz
φ
= 14.764 MHz
φ
= 12.288 MHz
UART0,
UART1
CSI0 to
CSI3
BPR
BRG
Error
BPR
BRG
Error
BPR
BRG
Error
BPR
BRG
Error
110
1,760
—
—
—
4
178
0.25%
4
131
0.07%
3
218
0.08%
150
2,400
—
—
—
4
130
0.16%
3
192
0.0%
3
160
0.0%
300
4,800
4
130
0.16%
3
130
0.16%
2
192
0.0%
2
160
0.0%
600
9,600
4
65
0.16%
2
130
0.16%
1
192
0.0%
1
160
0.0%
1,200
19,200
3
65
0.16%
1
130
0.16%
0
192
0.0%
0
160
0.0%
2,400
38,400
2
65
0.16%
0
130
0.16%
0
96
0.0%
0
80
0.0%
4,800
76,800
1
65
0.16%
0
65
0.16%
0
48
0.0%
0
40
0.0%
9,600
153,600
0
65
0.16%
0
33
1.36%
0
24
0.0%
0
20
0.0%
10,400
166,400
0
60
0.16%
0
30
0.16%
0
22
0.7%
0
18
2.6%
19,200
307,200
0
32
1.73%
0
16
1.73%
0
12
0.0%
0
10
0.0%
38,400
614,400
0
16
1.73%
0
8
1.73%
0
6
0.0%
0
5
0.0%
76,800
1,228,800
0
8
1.73%
0
4
1.73%
0
3
0.0%
0
3
16.7%
Note
153,600
2,457,600
0
4
1.73%
0
2
1.73%
0
2
25.0%
Note
—
—
—
Note Cannot be used because the error is too great.
Remark
BPR: Prescaler setting value (Set in the BPRMn register (n = 0 to 2))
BRG: Timer count value (Set in the BRGCn register (n = 0 to 2))
φ
:
Internal system clock frequency
Содержание V850E/MS1 UPD703100
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