s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 231

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

14.4 Functional Description
MC68HC908AB32
Freescale Semiconductor
—
Rev. 1.1
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
LOGIC
). V
COCO
READ DDRBx
WRITE DDRBx
WRITE PTBx
READ PTBx
Analog-to-Digital Converter (ADC)
ADIN
BUS CLOCK
CONVERSION
CGMXCLK
COMPLETE
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
ADC CHANNEL x
PTBx
Technical Data
ADCH[4:0]
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