CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U15195EJ5V0UD
435
(3) Baud rate setting example
Table 10-3. Baud Rate Generator Setting Data
f
XX
= 40 MHz
f
XX
= 33 MHz
f
XX
= 10 MHz
Baud Rate
(bps)
f
CLK
k ERR
f
CLK
k ERR
f
CLK
k ERR
300 f
XX
/2
10
65 0.16 f
XX
/2
8
215 –0.07 f
XX
/2
7
130 0.16
600 f
XX
/2
9
65 0.16 f
XX
/2
7
215 –0.07 f
XX
/2
6
130 0.16
1200 f
XX
/2
8
65 0.16 f
XX
/2
6
215 –0.07 f
XX
/2
5
130 0.16
2400 f
XX
/2
7
65 0.16 f
XX
/2
5
215 –0.07 f
XX
/2
4
130 0.16
4800 f
XX
/2
6
65 0.16 f
XX
/2
4
215 –0.07 f
XX
/2
3
130 0.16
9600 f
XX
/2
5
65 0.16 f
XX
/2
3
215 –0.07 f
XX
/2
2
130 0.16
19200 f
XX
/2
4
65 0.16 f
XX
/2
2
215 –0.07 f
XX
/2
1
130 0.16
31250 f
XX
/2
3
80 0 f
XX
/2
2
132 0 f
XX
/2
1
80 0
38400 f
XX
/2
3
65 0.16 f
XX
/2
1
215 –0.07 f
XX
/2
0
130 0.16
76800 f
XX
/2
2
65 0.16 f
XX
/2
1
107 0.39 f
XX
/2
0
65 0.16
153600 f
XX
/2
1
65 0.16 f
XX
/2
1
54 –0.54
f
XX
/2
0
33 –1.36
312500 f
XX
/2
1
32 0 f
XX
/2
1
26 1.54 f
XX
/2
0
16 0
625000 f
XX
/2
1
16 0 f
XX
/2
1
13 1.54 f
XX
/2
0
8 0
1250000 f
XX
/2
1
8 0 f
XX
/2
1
8
−
17.5
−
−
−
Caution The maximum allowable frequency of the base clock (f
CLK
) is 20 MHz.
Remarks
f
XX
:
Internal system clock frequency
f
CLK
:
Base clock frequency
k:
Setting values of MDL7 to MDL0 bits in BRGC0 register
ERR:
Baud rate error [%]