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PXD10RM Datasheet, PDF (123/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller | |||
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Chapter 5
Analog-to-Digital Converter (ADC)
5.1 Overview
5.1.1 Device-specific features
⢠10-bit resolution
⢠As many as 16 channels, expandable to 23 channels via external multiplexing
⢠Minimum conversion time of 1 µs
⢠Conversion triggering sources:
â Software
â PIT channel 2 (for normal conversion trigger only)
⢠2 different sampling and conversion time registers CTR[1:2] (extended internal channels, external
channels)
⢠As many as 23 data registers for storing converted data. Conversion information, such as mode of
operation (normal, injected), is associated to data value.
⢠Conversions on external channels managed in the same way as internal channels, making it
transparent to the application
⢠External decode signals (3 bits) to control the external analog multiplexers
⢠One Shot/Scan Modes
⢠Chain Injection Mode
⢠Hardware-triggered DMA transfer requests
⢠Power-down mode
⢠2 different Abort functions allow to abort either single-channel conversion or chain conversion
⢠4 programmable analog watchdogs with interrupt capability
â Allows continuous hardware monitoring of as many as 4 analog input channels
â Alternate analog thresholds
⢠Auto-clock-off
PXD10 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor
5-1
PreliminaryâSubject to Change Without Notice
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