Early Power Estimator User Guide

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ID 683272
Date 7/16/2021
Public
Document Table of Contents
Document Table of Contents x
1. Early Power Estimator Overview 2. Setting Up the Early Power Estimator 3. Early Power Estimator Worksheets 4. Factors Affecting the Early Power Estimator Spreadsheet Accuracy A. Additional Information for Early Power Estimator User Guide
1. Early Power Estimator Overview x
1.1. Release Information 1.2. Power Model Status for Supported Device Families
2. Setting Up the Early Power Estimator x
2.1. System Requirements 2.2. Download and Install the Early Power Estimator 2.3. Estimating Power Consumption
2.2. Download and Install the Early Power Estimator x
2.2.1. Changing the Macro Security Level in Microsoft Excel 2003 2.2.2. Changing the Macro Security Level in Microsoft Excel 2007 2.2.3. Changing the Macro Security Level in Microsoft Excel 2010
2.3. Estimating Power Consumption x
2.3.1. Estimating Power Consumption Before Starting the FPGA Design 2.3.2. Estimating Power Consumption While Creating the FPGA Design 2.3.3. Estimating Power Consumption After Completing the FPGA Design
2.3.1. Estimating Power Consumption Before Starting the FPGA Design x
2.3.1.1. Entering Information into the Early Power Estimator
2.3.1.1. Entering Information into the Early Power Estimator x
2.3.1.1.1. Manually Entering Values
2.3.2. Estimating Power Consumption While Creating the FPGA Design x
2.3.2.1. Importing a File
2.3.2.1. Importing a File x
2.3.2.1.1. Generate the EPE File 2.3.2.1.2. Import Data into the EPE Spreadsheet
3. Early Power Estimator Worksheets x
3.1. Main Worksheet 3.2. Logic Worksheet 3.3. RAM Worksheet 3.4. DSP Worksheet 3.5. I/O Worksheet 3.6. PLL Worksheet 3.7. Clock Worksheet 3.8. HSDI Worksheet 3.9. XCVR Worksheet 3.10. HMC Worksheet 3.11. IP Worksheet 3.12. HPS Worksheet 3.13. Report Worksheet 3.14. Enpirion Worksheet
3.1. Main Worksheet x
3.1.1. Input Parameter 3.1.2. Thermal Power 3.1.3. Power Tree Design 3.1.4. Thermal Analysis
3.1.4. Thermal Analysis x
3.1.4.1. Not Using a Heat Sink 3.1.4.2. Using a Heat Sink
3.13. Report Worksheet x
3.13.1. Static Power and Dynamic Current per Voltage Rail 3.13.2. Power Up Current 3.13.3. Power Breakout for Multiple Voltage Supplies 3.13.4. Power Regulator Settings
4. Factors Affecting the Early Power Estimator Spreadsheet Accuracy x
4.1. Toggle Rate 4.2. Airflow 4.3. Temperature 4.4. Heat Sink
A. Additional Information for Early Power Estimator User Guide x
A.1. Document Revision History for Early Power Estimator User Guide
1. Early Power Estimator Overview
2. Setting Up the Early Power Estimator
3. Early Power Estimator Worksheets
4. Factors Affecting the Early Power Estimator Spreadsheet Accuracy
A. Additional Information for Early Power Estimator User Guide

3.8. HSDI Worksheet

The supported device families feature dedicated circuitry that interface with high-speed differential I/O standards. These are dedicated transmitters and receivers that contain SERDES blocks, respectively. The HSDI worksheet of the EPE spreadsheet is divided into receiver and transmitter sections.

The power calculated in the HSDI worksheet of the EPE spreadsheet only applies to the transmitter serializer block or the receiver deserializer block. The transmitter and receiver are implemented using the ALTLVDS megafunction. The I/O buffer power is calculated in the I/O worksheet and the PLL power is calculated in the PLL worksheet.

Each row in the HSDI worksheet of the EPE spreadsheet represents a separate receiver or transmitter domain. Specify the following parameters for transmitter and receiver domains:

  • Data rate (in Mbps)
  • Number of channels
  • Serialization factor in the transmitter domain
  • Deserialization factor in the receiver domain
  • Toggle percentage

The receiver power is the same whether or not you use the DPA circuitry.

Figure 22. HSDI Worksheet of the EPE Spreadsheet
Table 14.  HSDI Worksheet Information
Column Heading Description
TX/RX Module Specify a name for the module in this column. This is an optional value.
Data Rate (Mbps) Enter the maximum data rate in Mbps of the receiver or transmitter module.
# of Channels Enter the number of receiver and transmitter channels running at the above data rate. This number must be an integer value from 0 to 156.
Serialization Factor/ Deserialization Factor Enter the number of parallel data bits for each serial data bit. This number must be an integer value from 1 to 10.
Toggle % Enter the average percentage of toggling on each clock cycle. The toggle percentage ranges from 0 to 100%. The default toggle percentage is 50%.
Total Power This shows the estimated power (in watts) based on the data rate and number of channels you entered. This value is automatically calculated.
User Comments Enter any comments. This is an optional entry.

For more information about the high-speed differential I/O standards of the supported device families, refer to the “High-Speed Differential I/O Interfaces” chapter of the respective device handbook.

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