Overview
Introducing Power Design Manager
Power estimation is critical for many decisions during the FPGA design process—from device selection to system-level power budgeting and thermal design. For many years, Xilinx Power Estimator (XPE) has been a leading FPGA power estimation tool; however, as FPGA, MPSoC, and adaptive compute acceleration platform (ACAP) device sizes and complexities have increased over the last few years, it has become clear that we must have a corresponding upgrade in our power estimation capabilities to better support large, complex device architectures with a range of complex, hard IP blocks.
Power Design Manager (PDM) is the new, next-generation power estimation platform designed to bring accurate and consistent power estimation capabilities to even the largest Versal® and Kria™ SOM products. Power Design Manager is the preferred power estimation tool for the Versal product family.
Power Design Manager Features
- Improved speed and stability for Versal devices
- Support for Versal AI Core series, Prime series, Premium series, and AI Edge series
- Support for the Kria K26 SOM and Kria KV260 Starter Kit
- New XDC wizard user-defined constraints for Vivado® ML Edition power designs and thermal budgets
- Now available for Windows and Linux
- Enhanced wizard for Versal ACAP hard IP blocks:
- DDR Memory Controller (DDRMC)
- 600G Channelized Multirate Ethernet Subsystem (DCMAC)
- Multirate Ethernet MAC (MRMAC)
- 600G Interlaken with FEC (ILKN)
- 400G High-Speed Crypto (HSC) Engine
- PCI Express® Integrated Block with DMA/Bridge and Cache Coherent Interconnect (CPM) with PCI Express Base Revision 5.0 (CPM5)
Migration
Easy Migration from XPE to PDM
PDM is recommended for evaluating the power consumption of Versal devices, and offers seamless migration of Versal devices from XPE to PDM. Simply select the Import XPE File option when creating a project in PDM. Once the .xpe file is imported, the PDM tool updates the Versal device resource usage based on the implemented design.
XPE will continue to support all devices prior to the Versal ACAP product family.
Supported Products
Power Design Manager for Versal devices
Versal Devices Support: Versal AI Core, AI Edge, Prime and Premium Series
AI Core Series
Delivers breakthrough AI inference and wireless acceleration with AI Engines that deliver over 100X greater compute performance than today’s server-class CPUs.
AI Edge Series
Delivers over 4X AI performance/watt vs. leading GPUs for power- and thermally-constrained edge applications, accelerating the whole application from sensor to AI to real-time control.
Prime Series
The foundational Versal® ACAP series, providing a wide range of devices with broad applicability across multiple markets.
Premium Series
Breakthrough integration of networked, power-optimized cores on an adaptable platform for the most challenging compute and networking applications.
Kria SOM Support: KV260 vision AI starter kit and K26 SOM
KV260 vision AI starter kit
The development platform for Kria K26 SOMs, the KV260 is built for advanced vision application development without requiring complex hardware design knowledge.
K26 SOM
The newest path to whole application acceleration, the K26 SOM is optimized for edge vision applications requiring flexibility to adapt to changing requirements.
Downloads
Download PDM and access other resources
Useful Information
Power Design Manager (PDM) version 2022.2.2 is a standalone download for power estimation of these products:
Versal® ACAP: AI Core | Prime | Premium | AI Edge
Kria™ SOM: K26 | KV260
Easily migrate existing power estimates from XPE to PDM to take advantage of the enhanced wizards for Versal devices as well as the expanded OS support.
Documentation
Downloads
Download the Public Key here, or from the Download Center.
Note for Windows Users:
The download archive is compressed using a tar gzip format. Use the tar command to extract the archive:
- Open the Command Prompt and Run as administrator.
- Change to the directory containing the PDM download archive.
- Run the tar command to extract into the same directory
tar -zxvf <PDM download file>.tar.gz
or use the -C option to extract into a different directory:
tar -zxvf <PDM download file>.tar.gz -C <alternative destination>
Sequence & Decoupling
Ensuring that the power delivery is correctly sequenced, decoupled, and consolidated is critical to a smooth board bring up. Via the Power Design page, PDM allows users to consolidate between two support power rails.
Minimum Rails:
Allows the fewest number of regulators for the selected device; however, this means the application cannot take advantage of any static power savings due to the power management of the domains. Dynamic power savings are still possible via techniques such as clock gating and frequency scaling.
Full Power Management:
Allows full control of the power rails so that maximum power savings are possible—both dynamic savings (from utilizing dynamic power savings such as clock gating or frequency scaling) and static savings (by turning on and off power domains as needed).
PDM will show the supported consolidation and sequencing for these options based on the device selected for core voltage (Low – 0.7v, Mid – 0.8v, and High – 0.88V) with and without PS (processing subsystem) overdrive.
From the power supply table, the power rail groups, DC tolerance, AC ripple, and all current requirements, as well as dynamic decoupling, are also displayed for the user's power estimation.
This ensures that the power delivery is correctly designed for the user’s planned application.
Decoupling capacitors and placement are also shown with PDM. Here are the recommended capacitors for XC (Commercial grade) and XQ (Defense grade) devices.
XC (Commercial grade) recommended capacitors:
| Nominal Value | Case Size | Temp | ESR | ESL | Manf | Manf Part Number | Ideal Placement to FPGA/MPSoC1 |
|---|---|---|---|---|---|---|---|
| 330uF | 1210 | X6S | 1mΩ | 4nH | Murata | GRM32EC80E337ME05L | Within 1-1.5" of BGA edge |
| 100uF | 0805 | X6S | 1.5mΩ | 2.5nH | Murata | GRM21BC80G107ME15L | Within 1-1.5" of BGA edge |
| 47uF | 0603 | X6S | 2mΩ | 2nH | Murata | GRM188C80E476ME05D | Within 1" of BGA edge |
| 22uF | 0603 | X6S | 3mΩ | 2nH | Murata | GRM188C80G226ME15 | Within 1" of BGA edge |
| 10uF | 0402 | X6S | 5mΩ | 1.5nH | Murata | GRM155C80E106ME44 | Within 1" of BGA edge |
| 1.0uF | 0201 | X6S | 10mΩ | 1nH | Murata | GRM033C80J105ME05 | Under BGA between power/GND vias |
- Ideal placement is to minimize spreading inductance from capacitor to FPGA/MPSoC/ACAP
- The decoupling listed above is based on the current PDM design and assumes all of the capacitor placement rules in UG863 have been followed.
- We recommend that a full PDN (power decoupling network) simulation is run to validate.
- Recommended capacitors for -55C to +105C:
XQ (Defense grade) recommended capacitors:
| Nominal Value | Case Size | Temp/ Change % | Manf | Manf Part Number | Ideal Placement to FPGA/MPSoC1 |
|---|---|---|---|---|---|
| 330µF | 7343 | TantPoly | Kemet | T541X337M010AH6510 | 1-4" |
| 47µF | 7343 | TantPoly | Kemet | T541X476M035AH6510 | 0.5-3" |
| 22µF | 1210 | X7R | Kemet | C1210C226K8RAL7800 | 0.5-2" |
| 2.2µF | 0805 | X7R | Kemet | C0805C225K4RAL7800 | 0-1" |
| 0.47µF | 0603 | X7R | Kemet | C0603C474K4RAL7867 | 0-1" |
| 0.1µF | 0402 | X7R | Kemet | C0402C104K4RAL7867 | 0-1" |
- Ideal placement is to minimize spreading inductance from capacitor to FPGA/MPSoC/ACAP
- The decoupling listed above is based on the current PDM design and assumes all of the capacitor placement rules in UG863 have been followed.
- We recommend that a full PDN simulation is run to validate.
- Recommended capacitors for -55C to +125C
For more details on validated power reference designs, go to the power delivery solutions page.