mc68hc908jg16 Freescale Semiconductor, Inc, mc68hc908jg16 Datasheet - Page 247
mc68hc908jg16
Manufacturer Part Number
mc68hc908jg16
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908JG16.pdf
(324 pages)
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13.4 Functional Description
MC68HC908JG16
MOTOROLA
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
READ DDRA
WRITE DDRA
WRITE PTA
READ PTA
COCO
BUS CLOCK
—
CONVERSION
COMPLETE
Rev. 1.0
Eight ADC channels are available for sampling external sources at pins
PTA7–PTA0. An analog multiplexer allows the single ADC converter to
select one of the eight ADC channels as ADC voltage input (ADCVIN).
ADCVIN is converted by the successive approximation register-based
counters. The ADC resolution is eight bits. When the conversion is
completed, ADC puts the result in the ADC data register and sets a flag
or generates an interrupt.
ADC.
Freescale Semiconductor, Inc.
For More Information On This Product,
RESET
Figure 13-2. ADC Block Diagram
ADC DATA REGISTER
GENERATOR
Analog-to-Digital Converter (ADC)
ADIV[2:0]
CLOCK
ADC
Go to: www.freescale.com
ADC CLOCK
DDRAx
PTAx
Figure 13-2
ADC VOLTAGE IN
ADCVIN
DISABLE
shows a block diagram of the
(1 OF 8 CHANNELS)
DISABLE
Analog-to-Digital Converter (ADC)
CHANNEL
SELECT
ADC CHANNEL x
Functional Description
PTAx/KBAx/ADx
Technical Data
ADCH[4:0]
247
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