Analog Devices ADuC841/ADuC842/ADuC843 Anomaly Sheet

About this manual

The document serves as an anomaly sheet for Silicon Revision E of the ADuC841/ADuC842/ADuC843 family. It details specific issues related to UART operation, stack pointer usage, I²C slave mode behavior, SPI interface configuration, and interrupt handling during flash operations.

What's inside

• Mode 0 UART Operation
• Use of the Extended Stack Pointer
• I2C in Slave Mode with Stop Interrupt
• I2C Data Transfer
• SPI Interface Configuration
• Interrupts During Reading/Writing to DATAFLASH/EE
• PWM Operation
• Watchdog Timer
• Level Triggered Interrupt Operation
• Stack Pointer in ULOAD Mode

Specifications

Frequently asked questions

What is the workaround for UART Mode 0 operation?

UART Mode 0 is nonfunctional on these devices, and there are no workarounds provided.

How should code handle interrupts during DATAFLASH/EE read or write?

All interrupts must be disabled prior to a read or write operation by setting the EA bit to 0.

What is the workaround for the Watchdog Timer interrupt issue?

A double write to WDCON must be executed inside the ISR, with the first write resetting the timer.