Analog Devices ADuC7122 MicroConverter Anomaly List

About this manual

This application note describes known bugs, anomalies, and workarounds for the ADuC7122 MicroConverter Revision C silicon. Analog Devices is committed to improving silicon functionality through future revisions while maintaining compatibility with current software and systems via the recommended workarounds outlined in this document.

The document details three specific functionality issues: external IRQ behavior when configured as level sensitive, disabling the I2C interface in slave mode during an active transfer, and the operation of the SPI interface in slave mode regarding clock pulse counts.

What's inside

• ADuC7122 Functionality Issues
• External IRQ Level Triggered Issue
• Disabling I2C Interface in Slave Mode
• Operation of SPI in Slave Mode
• Silicon Revision Identifier
• Workarounds

Specifications

Frequently asked questions

What silicon revision does this anomaly list cover?

This document covers the ADuC7122 MicroConverter Revision C silicon.

What is the workaround for the External IRQ level triggered issue?

The workaround is to ensure the external pin remains at the active level until the program vectors to the interrupt vector handler.