
MC9S12XDP512 Data Sheet, Rev. 2.17
Freescale Semiconductor
159
Chapter 5 Analog-to-Digital Converter (S12ATD10B8CV3)
5.1
Introduction
The ATD10B8C is an 8-channel, 10-bit, multiplexed input successive approximation analog-to-digital
converter. Refer to device electrical specifications for ATD accuracy.
5.1.1
Features
8/10-bit resolution
7
μ
sec, 10-bit single conversion time
Sample buffer amplifier
Programmable sample time
Left/right justified, signed/unsigned result data
External trigger control
Conversion completion interrupt generation
Analog input multiplexer for 8 analog input channels
Analog/digital input pin multiplexing
1-to-8 conversion sequence lengths
Continuous conversion mode
Multiple channel scans
Configurable external trigger functionality on any AD channel or any of four additional external
triggerinputs.Thefouradditionaltriggerinputscanbechipexternalorinternal.Refertothedevice
overview chapter for availability and connectivity.
Configurable location for channel wrap around (when converting multiple channels in a sequence).
5.1.2
Modes of Operation
5.1.2.1
Conversion Modes
Thereissoftwareprogrammableselectionbetweenperformingsingleorcontinuousconversiononasingle
channel or multiple channels.