5.1. Remote System Update Functional Description
5.1.1. RSU Glossary
Table 39.
RSU Glossary
Term
Meaning
Firmware
Firmware that runs on SDM. Implements many functions including the functions listed here:
• FPGA configuration
• Voltage regulator configuration
• Temperature measurement
• HPS software load
• HPS Reset
• RSU
• Read, erase, and program flash memory
• Device security, including authentication and encryption
Decision firmware
Firmware to identify and load the highest priority image. Previous versions of this user guide refer to decision firmware
as static firmware. Starting in version 19.1 of the Intel Quartus Prime software, you can use RSU to update this
firmware.
Decision firmware data
Decision firmware data structure containing the following information:
• The Direct to Factory Image pin assignment.
• PLL settings for the external clock source. This optional clock source drives
OSC_CLK_1
. For more information, refer
to OSC_CLK_1 Clock Input.
• Quad SPI pins.
Configuration pointer block (CPB)
A list of application image addresses in order of priority. When you add an image, that image becomes the highest
priority.
Sub-partition table (SPT)
Data structure to facilitate the management of the flash storage.
Application image
Configuration bitstream that implements your design. This image includes the SDM firmware.
Factory image
The backup application image that the RSU loads when all attempts to load an application image fail.
The factory image should provide enough functionality for the device to recover when all application images are
corrupt. Once the factory image loads, you can program new application images to replace the failing images.
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5. Remote System Update (RSU)
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Configuration User Guide
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