Analog Devices ADuC841/ADuC842/ADuC843 Anomaly Sheet

About this manual

The document is an anomaly (errata) sheet for the ADuC841, ADuC842, and ADuC843 MicroConverter products. It provides a summary of silicon revisions, a table of reported anomalies, and recommended workarounds for each issue.

Key sections include a silicon revision history table, a numbered list of anomalies covering UART, I²C, SPI, PWM, watchdog timer, and interrupt handling, and detailed workarounds or notes for each problem.

What's inside

• Silicon Revision History
• Anomaly List
• UART Mode 0 Issue
• Extended Stack Pointer Issue
• I²C Slave Mode Stop Interrupt Issue
• SPI Interface Issue
• Watchdog Timer Issue
• Level Triggered Interrupt Issue

Specifications

Frequently asked questions

What is the workaround for the UART Mode 0 non‑functional issue?

There is no workaround; the issue is listed as pending.

How can the stack pointer conflict in ULOAD mode be avoided?

Manually set the stack pointer to 0x07 (or another required address) in code.

What should be done to prevent errors when reading or writing Data FLASH/EE with an interrupt occurring?

Disable all interrupts before performing a Data FLASH/EE read or write operation.