參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機
文件頁數(shù): 104/172頁
文件大?。?/td> 1193K
代理商: M37640E8
2-92
7/9/98
UART
7600 Series
M37640E8-XXXF Preliminary Specification
Mitsubishi Microcomputers
The correspondence between prescale values and baud rate for
Φ
= 12MHz is given as an example in
Table 2-4.
When SCSGCLK is selected,
f
is the prescaled value of SCSGCLK.
f
= SCSGCLK/1, SCSGCLK/8, SCSGCLK/32 or SCSGCLK/256
Example settings for SCSGCLK, which is controlled by Special Count Source Generator registers 1 and
2 (SCSG1,2), the Prescaler and UxBRG for several common baud rates when
Φ
= 12MHz are given
in Table 2-5.
Table 2-4. Prescale Value and Baud Rate Table
Φ
= 12MHz
Φ
/8
Baud Rate
n
Baud Rate
750,000.0
375,000.0
250,000.0
187,500.0
150,000.0
125,000.0
107,142.9
93,750.0
0
93,750.0
83,333.3
1
46,875.0
75,000.0
2
31,250.0
.
3
23,437.5
.
4
18,750.0
.
5
15,625.0
.
6
13,392.9
.
7
.
.
8
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
2,929.7
255
366.2
Φ
/1
Φ
/32
Baud Rate
Φ
/256
Baud Rate
n
0
1
2
3
4
5
6
7
8
9
10
11
12
13
.
.
.
.
.
.
.
.
.
.
.
.
255
n
n
0
1
2
3
4
5
6
7
8
.
.
.
.
.
.
.
23,437.5
11,718.8
7,812.5
5,859.4
4,687.5
3,906.3
3,348.2
2,929.7
2,604.2
.
.
.
.
.
.
.
91.6
.
0
1
2
3
4
5
6
.
.
2,929.7
1,464.8
976.6
732.4
585.9
488.3
418.5
.
.
11.44
255
255
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