MC9S08JM60_09 Datasheet, PDF (156/388 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Analog-to-Digital Converter (S08ADC12V1)
ADCCVH/L = 0xxx
Holds compare value when compare function enabled
APCTL1=0x02
AD1 pin I/O control disabled. All other AD pins remain general purpose I/O pins
APCTL2=0x00
All other AD pins remain general purpose I/O pins
Reset
Initialize ADC
ADCCFG = 0x98
ADCSC2 = 0x00
ADCSC1 = 0x41
Check
No
COCO=1?
Yes
Read ADCRH
Then ADCRL To
Clear COCO Bit
Continue
Figure 10-13. Initialization Flowchart for Example
10.6 Application Information
This section contains information for using the ADC module in applications. The ADC has been designed
to be integrated into a microcontroller for use in embedded control applications requiring an A/D
converter.
10.6.1 External Pins and Routing
The following sections discuss the external pins associated with the ADC module and how they should be
used for best results.
MC9S08JM60 Series Data Sheet, Rev. 3
156
Freescale Semiconductor