mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 361

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

19.4.6 Monotonicity
19.5 Interrupts
19.6 Wait Mode
19.7 I/O Signals
19.7.1 ADC Analog Power Pin (V
MC68HC908MR24 — Rev. 4.1
Freescale Semiconductor
NOTE:
The conversion process is monotonic and has no missing codes.
When the AIEN bit is set, the ADC module is capable of generating a
CPU interrupt after each ADC conversion. A CPU interrupt is generated
if the COCO bit is at logic 0. The COCO bit is not used as a conversion
complete flag when interrupts are enabled.
The WAIT instruction can put the MCU in low power-consumption
standby mode.
The ADC continues normal operation during wait mode. Any enabled
CPU interrupt request from the ADC can bring the MCU out of wait
mode. If the ADC is not required to bring the MCU out of wait mode,
power down the ADC by setting ADCH[4:0] in the ADC status and control
register before executing the WAIT instruction.
The ADC module has 10 input signals that are shared with port B and
port C.
The ADC analog portion uses V
V
be necessary to ensure clean V
Route V
capacitors as close as possible to the package.
DDAD
pin to the same voltage potential as V
DDAD
Analog-to-Digital Converter (ADC)
DDAD
carefully for maximum noise immunity and place bypass
)
DDAD
DDAD
for good results.
as its power pin. Connect the
Analog-to-Digital Converter (ADC)
DD
. External filtering may
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