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_Temperature Readings Register_

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Temperature Readings Register

The temperature registers provide the current, maximum (from power-up) and minimum (from power-up) for the processor and PCB for UltraScale processor.

These registers are only available on Xilinx Generation 5 platforms, and are periodically populated by the motherboard core application, which only runs in Petalinux and BareMetal. For other operating systems, refer to the naibrd Software Support Kit (SSK) naibsp_system_Monitor_Temperature_Get() routine to manually retrieve the temperature (NOTE: this feature is typically utilized for development/factory use only; contact the factory for additional details on potential use, if required).

Function:Specifies the Measured Temperatures on Motherboard.
Type:signed byte (8-bits) for each temperature reading - Six (6) 32-bit words
Data Range:0x0000 0000 to 0xFFFF 0000
Read/Write:R
Initialized Value:Value corresponding to the measured temperatures based on the table below.
Operational Settings:The 8-bit temperature readings are signed bytes. For example, if the following register contains the value 0x2B2B 0000:

Example:

Word 1 (UltraScale Temperatures)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
UltraScale Core TemperatureUltraScale PCB Temperature
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0x000x00

The values would represent the following temperatures:

Temperature MeasurementsData BitsValueTemperature (Celsius)
UltraScale Core TemperatureD31:D240x2B+43°
UltraScale PCB TemperatureD23:D160x2B+43°
Temperature Readings
Word 1 (UltraScale Temperatures)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
UltraScale Core TemperatureUltraScale PCB Temperature
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0x000x00
Word 2 (Reserved)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
0x000x00
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0x000x00
Word 3 (Max UltraScale Temperatures)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
Max UltraScale Core TemperatureMax UltraScale PCB Temperature
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0x000x00
Word 4 (Reserved)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
0x000x00
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0000000000000000
Word 5 (Min UltraScale Temperatures)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
Min UltraScale Core TemperatureMin UltraScale PCB Temperature
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
0000000000000000
Word 6 (Reserved)
D31D30D29D28D27D26D25D24D23D22D21D20D19D18D17D16
0x000x00
D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0
00000000000000000
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