参数资料
型号: COP8CCR9LVA8
厂商: National Semiconductor
文件页数: 81/111页
文件大小: 0K
描述: IC MCU EEPROM 8BIT 68-PLCC
标准包装: 18
系列: COP8™ 8C
核心处理器: COP8
芯体尺寸: 8-位
速度: 20MHz
连通性: Microwire/Plus(SPI),UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 59
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 16x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 68-LCC(J 形引线)
包装: 管件
其它名称: *COP8CCR9LVA8
SNOS535I – OCTOBER 2000 – REVISED MARCH 2013
4. Poll ADBSY until it is cleared by the hardware. This indicates the completion of the conversion.
5. Obtain the results from the result registers.
The port pins used for the multiplexor output must be configured as high impedance inputs. If the port pins
are configured as outputs, or as inputs with weak pull-up, there will be a conflict between the analog signal
output and the digitally driven output.
Figure 5-20. A/D with Single Ended Mux Output Feature Enabled
Figure 5-21. A/D with Differential Mux Output Feature Enabled
5.14.1.1.3 Mode Select
This 1-bit field is used to select the mode of operation (single ended or differential) as shown in the
following Table 5-21.
Table 5-21. A/D Conversion Mode Selection
ADMOD
Mode
0
Single Ended Mode
1
Differential Mode
5.14.1.1.4 Prescaler Select
This 1-bit field is used to select one of two prescaler clocks for the A/D Converter. The following Table 5-
22 shows the various prescaler options. Care must be taken, when selecting this bit, to keep the A/D clock
frequency within the specified range.
Table 5-22. A/D Converter Clock Prescale
PSC
Clock Select
0
MCLK Divide by 1
1
MCLK Divide by 16
Copyright 2000–2013, Texas Instruments Incorporated
Functional Description
71
Product Folder Links: COP8CBR9 COP8CCR9 COP8CDR9
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