参数资料
型号: PIC16LF1824-E/ML
厂商: Microchip Technology
文件页数: 84/101页
文件大小: 0K
描述: IC MCU 8BIT 7KB FLASH 16QFN
标准包装: 91
系列: PIC® XLP™ mTouch™ 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 32MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 11
程序存储器容量: 7KB(4K x 14)
程序存储器类型: 闪存
EEPROM 大小: 256 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 16-VQFN 裸露焊盘
包装: 管件
223
2552K–AVR–04/11
ATmega329/3290/649/6490
22.7
Register Description
22.7.1
ADMUX – ADC Multiplexer Selection Register
Bit 7:6 – REFS1:0: Reference Selection Bits
These bits select the voltage reference for the ADC, as shown in Table 22-3. If these bits are
changed during a conversion, the change will not go in effect until this conversion is complete
(ADIF in ADCSRA is set). The internal voltage reference options may not be used if an external
reference voltage is being applied to the AREF pin.
Bit 5 – ADLAR: ADC Left Adjust Result
The ADLAR bit affects the presentation of the ADC conversion result in the ADC Data Register.
Write one to ADLAR to left adjust the result. Otherwise, the result is right adjusted. Changing the
ADLAR bit will affect the ADC Data Register immediately, regardless of any ongoing conver-
sions. For a complete description of this bit, see “ADCL and ADCH – The ADC Data Register” on
Bits 4:0 – MUX4:0: Analog Channel Selection Bits
The value of these bits selects which combination of analog inputs are connected to the ADC.
See Table 22-4 for details. If these bits are changed during a conversion, the change will not go
in effect until this conversion is complete (ADIF in ADCSRA is set).
Bit
765
4321
0
REFS1
REFS0
ADLAR
MUX4
MUX3
MUX2
MUX1
MUX0
ADMUX
Read/Write
R/W
Initial Value
000
0000
0
Table 22-3.
Voltage Reference Selections for ADC
REFS1
REFS0
Voltage Reference Selection
0
AREF, Internal Vref turned off
0
1
AVCC with external capacitor at AREF pin
10
Reserved
1
Internal 1.1V Voltage Reference with external capacitor at AREF pin
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