參數(shù)資料
型號: COPCSH984XXX/WM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 22/60頁
文件大小: 693K
代理商: COPCSH984XXX/WM
Baud Clock Generation (Continued)
TABLE 3. Baud Rate Divisors
(1.8432 MHz Prescaler Output)
Baud
Baud Rate
Rate
Divisor 1
(N-1)
110
(110.03)
1046
134.5
(134.58)
855
150
767
300
383
600
191
1200
95
1800
63
2400
47
3600
31
4800
23
7200
15
9600
11
19200
5
38400
2
Note: The entries in
Table 4 assume a prescaler output of 1.8432 MHz. In the
asynchronous mode the baud rate could be as high as 625k.
TABLE 4. Prescaler Factors
Prescaler
Select
Factor
00000
NO CLOCK
00001
1
00010
1.5
00011
2
00100
2.5
00101
3
00110
3.5
00111
4
Prescaler
Select
Factor
01000
4.5
01001
5
01010
5.5
01011
6
01100
6.5
01101
7
01110
7.5
01111
8
10000
8.5
10001
9
10010
9.5
10011
10
10100
10.5
10101
11
10110
11.5
10111
12
11000
12.5
11001
13
11010
13.5
11011
14
11100
14.5
11101
15
11110
15.5
11111
16
DS012829-16
FIGURE 14. USART BAUD Clock Generation
DS012829-17
FIGURE 15. USART BAUD Clock Divisor Registers
COP888xG/CS
Family
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