参数资料
型号: M38004M8DXXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, PLASTIC, QFP-64
文件页数: 166/173页
文件大小: 4203K
代理商: M38004M8DXXXFP
2.3 Serial I/O
2-44
APPLICATION
3800 GROUP USER’S MANUAL
Table 2.3.1 shows setting examples of Baud rate generator (BRG) values and transfer bit rate values,
Figure 2.3.31 shows a setting of related registers at a transmitting side, and Figure 2.3.32 shows a
setting of related registers at a receiving side.
Table 2.3.1 Setting examples of Baud rate generator values and transfer bit rate values
BRG setting value Actual time (bps) BRG setting value
at f(XIN) = 4.9152 MHZ
600
1200
2400
4800
9600
19200
38400
76800
31250
62500
600.96
1201.92
2403.85
4807.69
9615.38
20833.33
41666.67
83333.33
31250.00
62500.00
207(CF16)
103(6716)
51(3316)
25(1916)
12(0C16)
5(0516)
2(0216)
5(0516)
15(0F16)
7(0716)
600.00
1200.00
2400.00
4800.00
9600.00
19200.00
38400.00
76800.00
191(BF16)
95(5F16)
47(2F16)
23(1716)
11(0B16)
5(0516)
2(0216)
5(0516)
600.00
1200.00
2400.00
4800.00
9600.00
19200.00
38400.00
76800.00
127(7F16)
63(3F16)
31(1F16)
15(0F16)
7(0716)
3(0316)
1(0116)
3(0316)
at f(XIN) = 8 MHZ
at f(XIN) = 7.3728 MHZ
Transfer bit
rate (bps)
(Note 1)
BRG count
source
(Note 2)
Actual time (bps)
BRG setting value
f(XIN)/4
f(XIN)
Transfer bit rate (bps) =
(BRG setting value + 1) ! 16 ! m
f(XIN)
Notes 1: Equation of transfer bit rate
m: when bit 0 of the Serial I/O control register (Address : 1A16) is set to “0,” a value of m is 1.
when bit 0 of the Serial I/O control register (Address : 1A16) is set to “1,” a value of m is 4.
2: A BRG count source is selected by bit 0 of the Serial I/O control register (Address : 1A16).
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