参数资料
型号: MC68HC08QT2VDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
封装: EIAJ, SOIC-8
文件页数: 118/178页
文件大小: 2311K
代理商: MC68HC08QT2VDW
10-Bit Analog-to-Digital Converter (ADC10) Module
MC68HC08QY/QT Family Data Sheet, Rev. 1
44
Freescale Semiconductor
ADLSMP — Long Sample Time Configuration
This bit configures the sample time of the ADC10 to either 3.5 or 23.5 ADCK clock cycles. This adjusts
the sample period to allow higher impedance inputs to be accurately sampled or to maximize
conversion speed for lower impedance inputs. Longer sample times can also be used to lower overall
power consumption in continuous conversion mode if high conversion rates are not required.
1 = Long sample time (23.5 cycles)
0 = Short sample time (3.5 cycles)
ACLKEN — Asynchronous Clock Source Enable
This bit enables the asynchronous clock source as the input clock to generate the internal clock ADCK,
and allows operation in stop mode. The asynchronous clock source will operate between 1 MHz and
2 MHz if ADLPC is clear, and between 0.5 MHz and 1 MHz if ADLPC is set.
1 = The asynchronous clock is selected as the input clock source (the clock generator is only
enabled during the conversion)
0 = ADICLK specifies the input clock source and conversions will not continue in stop mode
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