参数资料
型号: PIC16F1527-E/MR
厂商: Microchip Technology
文件页数: 24/94页
文件大小: 0K
描述: MCU 28KB FLASH 1536B RAM 64-QFN
标准包装: 40
系列: PIC® XLP™ 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,LIN,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 54
程序存储器容量: 28KB(16K x 14)
程序存储器类型: 闪存
RAM 容量: 1.5K x 8
电压 - 电源 (Vcc/Vdd): 2.3 V ~ 5.5 V
数据转换器: A/D 30x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 64-VFQFN 裸露焊盘
包装: 管件
192
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
19.11 Examples of Baud Rate Setting
For standard crystal and resonator frequencies, the most commonly used baud rates for asyn-
chronous operation can be generated by using the UBRRn settings in Table 19-9. UBRRn
values which yield an actual baud rate differing less than 0.5% from the target baud rate, are
bold in the table. Higher error ratings are acceptable, but the Receiver will have less noise resis-
tance when the error ratings are high, especially for large serial frames (see “Asynchronous
Operational Range” on page 183). The error values are calculated using the following equation:
Note:
1. UBRRn = 0, Error = 0.0%
Error[%]
BaudRate
Closest Match
BaudRate
--------------------------------------------------------
1
100%
=
Table 19-9.
Examples of UBRRn Settings for Commonly Used Oscillator Frequencies
Baud
Rate
(bps)
fosc = 1.0000 MHz
fosc = 1.8432 MHz
fosc = 2.0000 MHz
U2Xn = 0
U2Xn = 1
U2Xn = 0
U2Xn = 1
U2Xn = 0
U2Xn = 1
UBRRn
Error
UBRRn
Error
UBRRn
Error
UBRRn
Error
UBRRn
Error
UBRRn
Error
2400
25
0.2%
51
0.2%
47
0.0%
95
0.0%
51
0.2%
103
0.2%
4800
120.2%250.2%230.0%47
0.0%
250.2%
51
0.2%
9600
6
-7.0%
12
0.2%
11
0.0%
23
0.0%
12
0.2%
25
0.2%
14.4k
3
8.5%
8
-3.5%
7
0.0%
15
0.0%
8
-3.5%
16
2.1%
19.2k
2
8.5%
6
-7.0%
5
0.0%
11
0.0%
6
-7.0%
12
0.2%
28.8k
1
8.5%
3
8.5%
3
0.0%
7
0.0%
3
8.5%
8
-3.5%
38.4k
1
-18.6%
2
8.5%
2
0.0%
5
0.0%
2
8.5%
6
-7.0%
57.6k
0
8.5%
1
8.5%
1
0.0%
3
0.0%
1
8.5%
3
8.5%
76.8k
1
-18.6%
1
-25.0%
2
0.0%
1
-18.6%
2
8.5%
115.2k
0
8.5%
0
0.0%
1
0.0%
0
8.5%
1
8.5%
230.4k
–––
–––0
0.0%
250k
–––
––––
–0
0.0%
Max.(1)
62.5 kbps
125 kbps
115.2 kbps
230.4 kbps
125 kbps
250 kbps
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