Reading Device Temperature on SSI Devices - 2023.2 English

Versal Adaptive SoC System Software Developers Guide (UG1304)

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2023.2 English

In SSI devices, the PLM-to-PLM communication framework is used to securely propagate secondary SLR device temperatures to the primary SLR. The PLM then determines the overall device minimum and maximum temperatures and store the values. The temperature from each SLR is collected every 100 ms.

The overall device temperatures can be read from the following registers:

Table 1. Device Temperature Registers
Register Address Usage
SYSMON_TEST_ANA_CTRL0 0xF1270134 Maximum device temperature
SYSMON_TEST_ANA_CTRL1 0xF1270138 Minimum device temperature
Note: The temperature values written to the SYSMON_TEST_ANA_CTRL0/1 registers are in Q8.7 format in degrees Celsius.