Power Calculator
5878 - ECP5/ECP5-5G: What is the maximum inrush current for ECP5U-85 during power up?
Peak start-up current may vary with respect to the configuration design. To get the Start-up current, please use the Power Calculator tool in the Lattice Diamond Design Software.
5266 - Diamond / Power Calculator: Which option should user select in "Board Selection" (JEDEC/Large/Medium/Small Board) category under Power Calculator - Thermal Profile section?
Solution: User can select the option based on the details described below: JEDEC Board (2S2P) – Specifies that a board defined by JEDEC specifications be used. These specifications are based on real boards and measurements conducted in the lab used ...
1727 - Lattice Power Calculator: What is VCD file format for Power Calculator?
The VCD (Value Change Dump) file format is specified in the IEEE Std. 1364-1995 standard. The VCD file is an ASCII containing header informaiton, variable definitions, and variable value changes. The VCD file is optionally imported into the Power ...
6109 - Power Calculator: How can I select other AirFlow Selection values (LFM) instead of the current values per heat selection?
The current values provided with the thermal models are averages of different values, and they are provided as a courtesy to the user. To produce better predictions, it is advised that you submit user own thermal values. The air-flow selections ...
1667 - Lattice Power Calculator / MachXO2: Why does the blank MachXO2 device in Power Calculator shows dynamic power?
In MachXO2's case, the internal oscillator is always on which adds the dynamic power power to the device. The Misc tab lists the internal clocks that are running for the blank part. The internal oscillator is needed for configuration and thus it ...
1461 - Diamond / Power Calculator: How do users include the heat sink information for power calculation in Lattice Diamond?
To include the heat sink information in the power calculations, invoke the Power Calculator tool. Then click on the Thermal Profile button and select the Use Thermal Models radio button. If the user know the approximate Theta-JA, select the User ...
1458 - Diamond / Power Calculator: What is the default routing resource utilization value in estimation mode in the Power Calculator?
The routing resource utilization value predicts the amount of routing resource that your design will use. The three possible values are high, medium and low. The Power Calculator by default assumes that the routing resource utilization is medium. ...
1456 - Power Calculator: How can the user load a Value Change Dump (VCD) file into Power Calculator?
A Value Change Dump (VCD) file is an ASCII file that describes the state transitions of digital logic. A VCD file can be written by logic simulation tools. Power estimation performed using a VCD file is an improvement over guessing an operating ...
6322 - Radiant Power Calculator: What is included in COMBINATORIAL clock name group under logic tab of Power Calculator?
The COMBINATORIAL is an internal dummy signal category to collect all non-clock nets. It is also used in the I/O and the Logic tab. To be specific, if the LUT doesn’t have a clock connected to the register in the same slice, the LUT is put into the ...
6264 - Power Calculator: Why does Radiant Power Estimator limits # of Inputs/Outputs in Estimation mode?
The allowable total value of the I/P & O/P columns in HP banks will depend on the FPGA device package that you are using and the number of pins available for each bank. For pin information, refer to the device datasheet.
6592 - Lattice Diamond: Why do i experience an Unexpected high power consumption in Lattice Diamond Power Calculator and even the number of Logic Block registers are reduced?
Description: In Lattice Diamond Power calculator, users may encounter a strange high power consumption on the power calculator. Solution: This is a known issue for the Power Calculator Logic Block. Request for patch 131367 to the Lattice Technical ...
6479 - Lattice Radiant Power Calculator: Why does VCCECLK rail not present on Radiant Power Calculator?
The VCCECLK has same power supply as VCC. The power of VCCECLK of the device is reported into the VCC power.