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COP684CS View Datasheet(PDF) - National ->Texas Instruments

Part NameCOP684CS National-Semiconductor
National ->Texas Instruments National-Semiconductor
Description8-Bit CMOS ROM Based Microcontrollers with 4k to 24k Memory, Comparators and USART
COP684CS Datasheet PDF : 53 Pages
First Prev 21 22 23 24 25 26 27 28 29 30 Next Last
Baud Clock Generation (Continued)
FIGURE 14. USART BAUD Clock Generation
DS012829-16
FIGURE 15. USART BAUD Clock Divisor Registers
TABLE 3. Baud Rate Divisors
(1.8432 MHz Prescaler Output)
Baud
Baud Rate
Rate
Divisor − 1
(N-1)
110
(110.03)
1046
134.5
855
(134.58)
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
00000
00001
00010
00011
00100
00101
00110
00111
Prescaler
Factor
NO CLOCK
1
1.5
2
2.5
3
3.5
4
Prescaler
Select
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
29
DS012829-17
Prescaler
Factor
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
11.5
12
12.5
13
13.5
14
14.5
15
15.5
16
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