mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 277

• Manufacturer Part Number: mc68hc08qa24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC08QA24
Freescale Semiconductor
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
READ DDRB/DDRB
WRITE DDRB/DDRD
WRITE PTB/PTD
READ PTB/PTD
COCO
BUS CLOCK
CONVERSION
COMPLETE
CGMXCLK
The remaining ADC channels/port pins are controlled by the port I/O
logic and can be used as general-purpose I/O. Writes to the port register
or DDR will not have any affect on the port pin that is selected by the
ADC. Read of a port pin which is in use by the ADC will return a logic 0
if the corresponding DDR bit is at logic 0. If the DDR bit is at logic 1, the
value in the port data latch is read.
RESET
Figure 19-1. ADC Block Diagram
Analog-to-Digital Converter (ADC)
ADIV[2:0]
ADC DATA REGISTER
CLOCK
GENERATOR
DDRBx/DDRDx
ADC
PTBx/PTDx
ADC CLOCK
ADICLK
ADC VOLTAGE IN
ADCVIN
DISABLE
Analog-to-Digital Converter (ADC)
DISABLE
CHANNEL
SELECT
ADC CHANNEL x
PTBx/PTDx
ADCH[4:0]
Technical Data
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