This user guide describes the features and behavior of the ALTTEMP_SENSE megafunction that you can configure through the MegaWizard interface in the Quartus II software. This user guide also includes a design example that instantiates the temperature sensing diode (TSD) block using the ALTTEMP_SENSE megafunction.
This user guide describes the features and behavior of the ALTTEMP_SENSE megafunction, which allows users to configure the temperature sensing diode (TSD) block through the MegaWizard interface in Quartus II software. The TSD block includes an 8-bit analog to digital converter (ADC), a clock divider, comparator, decoder, and a temperature sensing diode that performs temperature measurement of an FPGA.
| ADC Resolution | 8-bit |
|---|---|
| Input Clock Frequency | 1 MHz or 40 MHz |
| ADC Clock Frequency | 1 MHz or 500 kHz |
| Output Ports | tsdcalo[7:0] and tsdcaldone |
The allowable frequency for the clk signal is 1 MHz or 40 MHz.
The clk signal is divided down to 1 MHz or 500 kHz to feed the ADC.