mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 179

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

13.4 Functional Description
MC68HC908LD64
Freescale Semiconductor
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
READ DDRC
WRITE DDRC
WRITE PTC
READ PTC
COCO
BUS CLOCK
—
CONVERSION
COMPLETE
Rev. 3.0
Six ADC channels are available for sampling external sources at pins
PTC5–PTC0. An analog multiplexer allows the single ADC converter to
select one of the six 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.
RESET
Figure 13-2. ADC Block Diagram
ADC DATA REGISTER
GENERATOR
Analog-to-Digital Converter (ADC)
ADIV[2:0]
CLOCK
ADC
ADC CLOCK
DDRCx
PTCx
Figure 13-2
ADC VOLTAGE IN
ADCVIN
DISABLE
shows a block diagram of the
(1 OF 6 CHANNELS)
DISABLE
Analog-to-Digital Converter (ADC)
CHANNEL
SELECT
ADC CHANNEL x
PTCx/ADCx
Functional Description
Data Sheet
ADCH[4:0]
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