參數(shù)資料
型號(hào): AT90S2313-10PC
廠商: Atmel
文件頁數(shù): 42/92頁
文件大?。?/td> 0K
描述: IC MCU 2K FLSH 10MHZ UART 20DIP
標(biāo)準(zhǔn)包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 10MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 15
程序存儲(chǔ)器容量: 2KB(1K x 16)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 管件
47
AT90S2313
0839I–AVR–06/02
Bit 1 – RXB8: Receive Data Bit 8
When CHR9 is set (one), RXB8 is the ninth data bit of the received character.
Bit 0 – TXB8: Transmit Data Bit 8
When CHR9 is set (one), TXB8 is the ninth data bit in the character to be transmitted.
Baud Rate Generator
The baud rate generator is a frequency divider that generates baud rates according to
the following equation:
BAUD = Baud Rate
fCK = Crystal Clock frequency
UBRR = Contents of the UART Baud Rate Register (UBRR) (0 - 255)
For standard crystal frequencies, the most commonly used baud rates can be generated
by using the UBRR settings in Table 15. UBRR values that yield an actual baud rate dif-
fering less than 2% from the target baud rate, are boldfaced in the table. However, using
baud rates that have more than 1% error is not recommended. High error ratings give
less noise resistance.
Table 15. UBRR Settings at Various Crystal Frequencies
BAUD
fCK
16(UBRR
1)
+
-------------------------------------
=
Baud Rate
1MHz %Error
1.8432 MHz %Error
2MHz %Error
2.4576 MHz %Error
2400 UBRR=
25
0.2 UBRR=
47
0.0 UBRR=
51
0.2 UBRR=
63
0.0
4800 UBRR=
12
0.2 UBRR=
23
0.0 UBRR=
25
0.2 UBRR=
31
0.0
9600 UBRR=
6
7.5 UBRR=
11
0.0 UBRR=
12
0.2 UBRR=
15
0.0
14400 UBRR=
3
7.8 UBRR=
70.0 UBRR=
8
3.7 UBRR=
10
3.1
19200 UBRR=
2
7.8 UBRR=
50.0 UBRR=
6
7.5 UBRR=
70.0
28800 UBRR=
1
7.8 UBRR=
30.0 UBRR=
3
7.8 UBRR=
4
6.3
38400 UBRR=
1
22.9 UBRR=
20.0 UBRR=
2
7.8 UBRR=
30.0
57600 UBRR=
0
7.8 UBRR=
10.0 UBRR=
1
7.8 UBRR=
2
12.5
76800 UBRR=
0
22.9 UBRR=
1
33.3 UBRR=
1
22.9 UBRR=
10.0
115200 UBRR=
0
84.3 UBRR=
00.0 UBRR=
0
7.8 UBRR=
0
25.0
Baud Rate 3.2768 MHz %Error
3.6864 MHz %Error
4MHz %Error
4.608 MHz %Error
2400 UBRR=
84
0.4 UBRR=
95
0.0 UBRR=
103
0.2 UBRR=
119
0.0
4800 UBRR=
42
0.8 UBRR=
47
0.0 UBRR=
51
0.2 UBRR=
59
0.0
9600 UBRR=
20
1.6 UBRR=
23
0.0 UBRR=
25
0.2 UBRR=
29
0.0
14400 UBRR=
13
1.6 UBRR=
15
0.0 UBRR=
16
2.1 UBRR=
19
0.0
19200 UBRR=
10
3.1 UBRR=
11
0.0 UBRR=
12
0.2 UBRR=
14
0.0
28800 UBRR=
61.6 UBRR=
70.0 UBRR=
8
3.7 UBRR=
90.0
38400 UBRR=
4
6.3 UBRR=
50.0 UBRR=
6
7.5 UBRR=
7
6.7
57600 UBRR=
3
12.5 UBRR=
30.0 UBRR=
3
7.8 UBRR=
40.0
76800 UBRR=
2
12.5 UBRR=
20.0 UBRR=
2
7.8 UBRR=
3
6.7
115200 UBRR=
1
12.5 UBRR=
10.0 UBRR=
1
7.8 UBRR=
2
20.0
Baud Rate 7.3728 MHz %Error
8MHz %Error
9.216 MHz %Error
11.059 MHz %Error
2400 UBRR=
191
0.0 UBRR=
207
0.2 UBRR=
239
0.0 UBRR=
287
-
4800 UBRR=
95
0.0 UBRR=
103
0.2 UBRR=
119
0.0 UBRR=
143
0.0
9600 UBRR=
47
0.0 UBRR=
51
0.2 UBRR=
59
0.0 UBRR=
71
0.0
14400 UBRR=
31
0.0 UBRR=
34
0.8 UBRR=
39
0.0 UBRR=
47
0.0
19200 UBRR=
23
0.0 UBRR=
25
0.2 UBRR=
29
0.0 UBRR=
35
0.0
28800 UBRR=
15
0.0 UBRR=
16
2.1 UBRR=
19
0.0 UBRR=
23
0.0
38400 UBRR=
11
0.0 UBRR=
12
0.2 UBRR=
14
0.0 UBRR=
17
0.0
57600 UBRR=
70.0 UBRR=
8
3.7 UBRR=
90.0 UBRR=
11
0.0
76800 UBRR=
50.0 UBRR=
6
7.5 UBRR=
7
6.7 UBRR=
80.0
115200 UBRR=
30.0 UBRR=
3
7.8 UBRR=
40.0 UBRR=
50.0
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