参数资料
型号: MC68HC05P9AMDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 27/158页
文件大小: 3885K
代理商: MC68HC05P9AMDW
ADC
122
ADC
I/O Registers
The following registers control and monitor operation of the ADC:
ADC status and control register (ADSCR)
ADC data register (ADDR)
ADC Status and
Control Register
The ADC status and control register (ADSCR) contains a conversion
complete flag and four writable control bits. Writing to ADSCR clears the
conversion complete flag and starts a new conversion sequence.
CCF — Conversion Complete Flag
This read-only bit is automatically set when an analog-to-digital
conversion is complete, and a new result can be read from the ADC
data register. Clear the CCF bit by writing to the ADC status and
control register or by reading the ADC data register. Resets clear the
CCF bit.
1 = Conversion complete
0 = Conversion not complete
$001E
Bit 7
654321
Bit 0
Read:
CCF
ADRC
ADON
00
CH2
CH1
CH0
Write:
Reset:
00000000
= Unimplemented
Figure 68. ADC Status and Control Register (ADSCR)
10-mc68hc05p9a
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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