5.8.3.2 Interrupt Mode

In Interrupt mode, the Alert output is asserted as active-high or active-low (depending on the polarity configuration) when T_A drifts above or below T_UPPER and T_LOWER limits. The output is deasserted by setting bit 5 (Interrupt Clear bit) of CONFIG. Shutting down the device will not reset or deassert the Alert output. This mode can not be selected when the Alert output is used as a critical temperature output only, using bit 2 of CONFIG.

This mode is designed for interrupt driven microcontroller-based systems. The microcontroller receiving the interrupt will have to Acknowledge the interrupt by setting bit 5 of the CONFIG register from the MCP9808.