mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 171

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

9.2
The ADC module supports up to 28 separate analog inputs. It also requires four supply/reference/ground
connections.
Freescale Semiconductor
MCU STOP
V
V
AD27
External Signal Description
3
ADHWT
AD0
REFH
REFL
Compare true
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
1
ADVIN
ADCSC1
2
AD27–AD0
V
Name
V
V
V
Control Sequencer
Compare Value Registers
REFH
REFL
DDA
SSA
Figure 9-1. ADC Block Diagram
Table 9-2. Signal Properties
Data Registers
SAR Converter
Compare
ADCK
Logic
ADCCFG
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
Analog-to-Digital Converter (S08ADC12V1)
Clock Gen
÷2
Async
Bus Clock
ALTCLK
Interrupt
9-5