MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 324

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Analog-to-Digital Converter (ADC)
19.8.1 ADC Status and Control Register
Advance Information
324
Address:
These paragraphs describe the function of the ADC status and control
register.
COCO — Conversions Complete Bit
AIEN — ADC Interrupt Enable Bit
Reset:
Read:
Write:
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. Reset clears this bit.
When this bit is set, an interrupt is generated at the end of an ADC
conversion. The interrupt signal is cleared when the data register is
read or the status/control register is written. Reset clears the AIEN bit.
Figure 19-2. ADC Status and Control Register (ADSCR)
1 = conversion completed (AIEN = 0)
0 = conversion not completed (AIEN = 0)
0 = CPU interrupt enabled (AIEN = 1)
1 = ADC interrupt enabled
0 = ADC interrupt disabled
COCO
$0038
Bit 7
Analog-to-Digital Converter (ADC)
R
R
0
= Reserved
AIEN
6
0
or
ADCO
5
0
ADCH4
4
1
ADCH3
3
1
MC68HC708AS48
ADCH2
2
1
ADCH1
1
1
MOTOROLA
—
Rev. 4.0
ADCH0
Bit 0
1