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參數(shù)資料
| 型號(hào)： | COP8SGR928D9 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 8-Bit CMOS ROM Based and OTP Microcontrollers with 8k to 32k Memory, Two Comparators and USART |
| 中文描述： | 8位的CMOS基于ROM和OTP微控制器具有8K到32K的內(nèi)存，2個(gè)比較器和USART |
| 文件頁數(shù)： | 26/62頁 |
| 文件大?。?/td> | 913K |
| 代理商： | COP8SGR928D9 |
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8.0 USART (Continued)
rates may be created by using appropriate divisors. The 16x
clock is then divided by 16 to provide the rate for the serial
shift registers of the transmitter and receiver.
TABLE 4. 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 987.5k.
TABLE 5. Prescaler Factors
Prescaler
Select
Factor
00000
NO CLOCK
00001
1
00010
1.5
00011
2
Prescaler
Select
Factor
00100
2.5
00101
3
00110
3.5
00111
4
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
10131741
FIGURE 23. USART BAUD Clock Generation
10131742
FIGURE 24. USART BAUD Clock Divisor Registers
COP8SG
Family
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