Analog-to-Digital Converter (ADC)
MPC5606S Microcontroller Reference Manual, Rev. 7
130 Freescale Semiconductor
5.1.2 Device-specific implementation
Figure 5-1. ADC implementation
5.2 Introduction
The analog-to-digital converter (ADC) block provides accurate and fast conversions for a wide range of
applications. An ADC analog part has its corresponding digital interface (ADCDig).
The ADC digital interface contains advanced features for normal or injected conversion. A conversion can
be triggered by software or hardware (PIT3).
There are several types of input channels:
• Internal extended, ANS (internally multiplexed standard accuracy channels)
• External, ANX (externally multiplexed standard accuracy channels)
The mask registers present within the ADCDig can be programmed to configure which channel is to be
converted.
Several external decode signals MA[2:0] (multiplexer address) are provided for external channel selection
and are available as alternate functions on GPIO.
A conversion timing register for configuring different sampling and conversion times is associated to each
channel type.
Analog watchdogs allow continuous hardware monitoring.
16 channels
Up to 8 extended channels
through external MUX
Ch 47 (ANS15)
Ch 42 (ANS10)
Ch 32 (ANS0)
PIT3
MA [2:0]
3 single-ended interrupts
EOC, Watchdog, ECH
MUX 8
3
Digital
Interface
Analog
switch
PIT
INTC
D
A
MUX 16
ADC system
.
.
.
.
.
.
Injected and normal trigger
/2
ADCLKSEL
ACKO
System clock
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