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AM263P2: Question about AM243P2 temperature sensors

Jongho Park
Prodigy 130 points

Part Number: AM263P2

Hello~~

 

Question about AM243P2 temperature sensors 

1. How many temperature sensors are there inside?
The TRM document shows four.
TSENSE_CFG_SENSOR_SEL
bit3:temp_sensor3
bit2:temp_sensor2
bit1:temp_sensor1
bit0:temp_sensor0
2. Please explain the purpose and location of each sensor.
3. When connecting an additional temperature sensor to check other devices outside the CPU, is it possible to use the ADC pins for interrupt operation?
4. If only a specific ADC pin needs to be used as an interrupt, please provide the pin number.

Thank you

Jongho Park

  • 0
    TI__Mastermind 22142 points

    Hi Jongho,

    Can you help me understand what device is in question here? I see both "AM263Px" and "AM243x" in title.

    Regards,
    Shaunak

  • 0 in reply to Shaunak Deshpande
    Prodigy 130 points

    sorry to write the processor name.

    I'm reviewing the AM263P2 processor.

    Can you check temperature sensor of this processor ?

    Thank you. 

  • 0
    TI__Prodigy 70 points

    Hi Jongho,

    1. There are total 4 sensor inside AM263Px 
      1. temp_sensor0: Placed near hotspot, CTAT((Complementary To Absolute Temperature) type
      2. temp_sensor1: Placed near hotspot, CTAT type
      3. temp_sensor2: Placed at non-hotspot location. CTAT type
      4. temp_sensor3: Placed at non-hotspot location (This sensor is meant for internal testing only), PTAT(Proportional To Absolute Temperature) type
    2. To measure temperature of microcontroller, it is recommended to use temp_sensor0 and temp_sensor1 as they are placed near to hotspot location.
    3. Yes, you can use ADC Post Processing Block(PPB) to generate interrupt based on some threshold. You can read the temperature sensor data using ADC and it can generate an interrupt if reading goes above or below certain predefined threshold.
    4. You can use any ADC pin for this purpose; ADC PPB block needs to be configured accordingly. 

    Thanks,
    Nikhil