Datasheet

ADSP-21489 EZ-Board Evaluation System Manual 2-23
ADSP-21489 EZ-Board Hardware Reference
Thermal Limit LED (LED11)
The thermal limit LED (LED11) reports a status of the thermal sensor,
ADM1032 (U43). The thermal sensor monitors the processor’s tempera-
ture. When the high temperature limit set by the IC is violated, LED11 is
turned on as a visual indicator. The ADM1032 has built-in hysteresis,
which causes the LED to de-activate only when the temperature is signifi-
cantly within the limit. For more information, see “Temperature Sensor
Interface” on page 1-13.