z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 150

• Manufacturer Part Number: z8f1601
• Description: Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
• Manufacturer: ZiLOG Semiconductor

Analog-to-Digital Converter
Overview
Architecture
PS017609-0803
The Analog-to-Digital Converter (ADC) converts an analog input signal to a 10-bit binary
number. The features of the sigma-delta ADC include:
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Figure 83 illustrates the three major functional blocks (converter, analog multiplexer, and
voltage reference generator) of the ADC. The ADC converts an analog input signal to its
digital representation. The 12-input analog multiplexer selects one of the 12 analog input
sources. The ADC requires an input reference voltage for the conversion. The voltage ref-
erence for the conversion may be input through the external VREF pin or generated inter-
nally by the voltage reference generator.
12 analog input sources are multiplexed with general-purpose I/O ports
Interrupt upon conversion complete
Internal voltage reference generator
Direct Memory Access (DMA) controller can automatically initiate data conversion
and transfer of the data from 1 to 12 of the analog inputs.
Analog-to-Digital Converter
Z8 Encore!
®
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