參數(shù)資料
型號： MC68HC705P9DW
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封裝： SOIC-28
文件頁數(shù)： 42/160頁
文件大?。?/td> 2208K
代理商： MC68HC705P9DW
Analog-to-Digital Converter (ADC)
Technical Data
MC68HC705P9 — Rev. 4.0
136
Analog-to-Digital Converter (ADC)
MOTOROLA
To prevent excess power dissipation, do not use an ADC pin as an
analog input and a digital input at the same time.
Using one of the port pins as the ADC input does not affect the ability to
use the remaining port pins as digital inputs.
Reading a port pin that is selected as an analog input returns a logic
zero.
11.7.2 ADC Data Register
The ADC data register (ADDR) is a read-only register that contains the
result of the most recent analog-to-digital conversion.
11.8 Low-Power Modes
11.8.1 Stop Mode
The STOP instruction turns off the ADC and aborts any current and
pending conversions.
11.8.2 Wait Mode
The ADC continues to operate normally after the WAIT instruction. To
reduce power consumption in wait mode:
If the ADC is not being used, clear both the ADON and ADRC bits
before entering wait mode.
If the ADC is being used and the internal clock rate is above
1 MHz, clear the ADRC bit before entering wait mode.
$001D
Bit 7
6
54321
Bit 0
Read:
Bit 7
6
54321
Bit 0
Write:
Reset:
Unaffected by reset
Figure 11-4. ADC Data Register (ADDR)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
PDF描述
MC68HC705P9MS 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, CDIP28
MC68HC705P9CDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705P9VS 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, CDIP28
MC68HC705P9S 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, CDIP28
MC68HC705P9VDW 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
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