MC68HC08AZ32A Datasheet, PDF (417/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Analog-to-Digital Converter (ADC-15)
I/O Registers
23.7.4 ADC Voltage In (ADCVIN)
ADCVIN is the input voltage signal from one of the 15 ADC channels to
the ADC module.
23.8 I/O Registers
These I/O registers control and monitor ADC operation:
• ADC status and control register (ADSCR)
• ADC data register (ADR)
• ADC clock register (ADICLK)
23.8.1 ADC Status and Control Register
The following paragraphs describe the function of the ADC status and
control register.
Address: $0038
Bit 7
6
5
4
3
2
1
Bit 0
Read: COCO
AIEN ADCO ADCH4 ADCH3 ADCH2 ADCH1 ADCH0
Write: R
Reset: 0
0
0
1
1
1
1
1
R = Reserved
Figure 23-2. ADC Status and Control Register (ADSCR)
COCO — Conversions Complete Bit
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.
MC68HC08AZ32A — Rev 1.0
MOTOROLA
Analog-to-Digital Converter (ADC-15)
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Technical Data
417