MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 351

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MC68HC908AZ32ACFU

Manufacturer Part Number
MC68HC908AZ32ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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21.8 I/O Registers
21.8.1 ADC Status and Control Register
68HC908AZ32A — Rev 0.0
MOTOROLA
Address:
These I/O registers control and monitor ADC operation:
The following paragraphs describe the function of the ADC status and
control register.
COCO — Conversions Complete Bit
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
When the AIEN bit is a logic 0, the COCO is a read-only bit which is
set each time a conversion is completed. This bit is cleared whenever
the ADC status and control register is written or whenever the ADC
data register is read.
If the AIEN bit is a logic 1, the COCO is a read/write bit which selects
the CPU to service the ADC interrupt request. Reset clears this bit.
For More Information On This Product,
Figure 21-2. ADC Status and Control Register (ADSCR)
1 = conversion completed (AIEN = 0)
0 = conversion not completed (AIEN = 0)
ADC status and control register (ADSCR)
ADC data register (ADR)
ADC clock register (ADICLK)
COCO
Analog-To-Digital Converter (ADC-15)
$0038
Bit 7
CPU interrupt enabled (AIEN = 1)
R
R
0
Go to: www.freescale.com
= Reserved
AIEN
6
0
or
ADCO
5
0
CH4
4
1
Analog-To-Digital Converter (ADC-15)
CH3
3
1
CH2
2
1
Advance Information
CH1
1
1
I/O Registers
Bit 0
CH0
1
351

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