mc9s08qd4 Freescale Semiconductor, Inc, mc9s08qd4 Datasheet - Page 100

• Manufacturer Part Number: mc9s08qd4
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Analog-to-Digital Converter (S08ADC10V1)
8.2
The ADC module supports up to 28 separate analog inputs. It also requires four supply/reference/ground
connections.
100
MCU STOP
V
V
AD27
External Signal Description
3
AD0
ADHWT
REFH
REFL
Compare true
1
ADCSC1
ADVIN
2
AD27–AD0
MC9S08QD4 Series MCU Data Sheet, Rev. 3
V
V
V
Name
V
Control Sequencer
Compare Value Registers
DDAD
REFH
SSAD
REFL
Figure 8-2. ADC Block Diagram
Table 8-2. Signal Properties
Data Registers
SAR Converter
Compare
ADCCFG
ADCK
Logic
Analog Channel inputs
High reference voltage
Low reference voltage
Analog power supply
Analog ground
Divide
Clock
Compare true
Function
ADCSC2
COCO
AIEN
1
2
ADACK
3
Clock Gen
÷2
Async
Bus Clock
ALTCLK
Freescale Semiconductor
Interrupt