MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 231

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

14.4 Functional Description
MC68HC908AB32
MOTOROLA
—
Rev. 1.0
The ADC provides eight pins for sampling external sources at pins
PTB7/ATD7–PTB0/ATD0. An analog multiplexer allows the single ADC
converter to select one of eight ADC channels as ADC voltage in
(V
register-based analog-to-digital converter. When the conversion is
completed, ADC places the result in the ADC data register and sets a
flag or generates an interrupt. (See
INTERNAL
DATA BUS
AIEN
INTERRUPT
ADIN
Freescale Semiconductor, Inc.
LOGIC
For More Information On This Product,
). V
COCO
READ DDRBx
WRITE DDRBx
WRITE PTBx
READ PTBx
Analog-to-Digital Converter (ADC)
ADIN
BUS CLOCK
CONVERSION
CGMXCLK
COMPLETE
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RESET
is converted by the successive approximation
Figure 14-2. ADC Block Diagram
ADC DATA REGISTER
ADIV[2:0]
GENERATOR
DDRBx
PTBx
CLOCK
ADC
ADC CLOCK
ADICLK
Figure
VOLTAGE IN
DISABLE
Analog-to-Digital Converter (ADC)
(V
14-2.)
ADC
ADIN
)
ADC I/P CHANNELS
DISABLE
CHANNEL
SELECT
Functional Description
ADC CHANNEL x
PTBx
Technical Data
ADCH[4:0]
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