SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
The ESM supports another interrupt output for events which are deemed even more critical than high priority events. For example, an error which should result in a warm reset of a domain or the entire device. Unlike Low/ High Priority Error Events, Critical Priority Error Events don’t require enabling. Instead each Critical Priority Error Event Input can be programmed, via software, to influence the Critical Priority Interrupt Output (Error GroupN Critical Priority Interrupt Influence Set Register. The critical priority interrupt output can trigger immediately or can be programed to trigger after consecutive cycles of aggregate input error event assertion. To trigger immediately, the counter preload value should be programmed to 0 and/or the have the associated input tie-off value assigned to 0.
The critical priority interrupt output is sensitive to the ESM’s warm reset input as well as the Global Soft Reset MMR, so it can be tied directly to chip level reset logic if needed. The ESM’s warm reset input is used synchronously. Assertion of the ESM Warm Reset Input disables the ESM Global Enable MMR. When the critical priority interrupt output triggers, the occurrence is logged in the Info Registe. The logging status can only be reset via POR and the Global Soft Reset MMR.