Migrating to the ADuC831 from the ADuC812 Technical Note

This document is about the upgrade of ADuC831 and ADuC812. It introduces new features and modification points of ADuC831, including ADC, voltage reference connection, interrupt structure, watchdog timer, flash programming/erase, SPI timing, etc.

Brand: Analog Devices
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 3
File format: PDF
File size: 52 KB
Published: 03 August, 2012
Updated: 30 September, 2023
Model: ADUC812
MD5 checksum: FC253F771CEF3A066A8D91730C267E08
PDF: Migrating to the ADuC831 from the ADuC812 Technical Note PDF

About this manual

This document serves as a guide for users of the ADuC812 who are upgrading their systems to the newer ADuC831 MicroConverter. It highlights specific modifications needed in control registers and hardware configurations due to feature enhancements in the new device.

Key areas covered include differences in ADC operation, voltage reference connections, power supply monitoring, interrupt structures, watchdog timer behavior, flash programming timing, SPI timing, and Port 3 drive capabilities.

What's inside

Introduction
Modifications Overview
ADC Operation
Voltage Reference Connection
Power Supply Monitor
Interrupt Structure
Watchdog Timer
Flash Programming/Erase
SPI Timing
Port 3 Drive Capability

Specifications

Program Flash Memory	62kB
On Chip RAM	2kB
Data Flash Memory	4kB

Frequently asked questions

What are the additional features of the ADuC831 compared to the ADuC812?

The ADuC831 includes 62kB program flash, 2kB on chip RAM, and 4kB data flash.

How does the ADC clock divider ratio change in the ADuC831?

The ratios are now 8, 4, 16, and 32.

What is the new drive capability for Port 3 on the ADuC831?

Port 3 is specified to sink 4mA.

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