These services provide return information about the device and current user design. The requested information is copied to a location whose address is included in the service descriptor. The size of the data returned is service dependent. The following table lists all the device and design information system services with their command values, description, and return status code.
| System Service Name | SERVICECMD in Hexadecimal | Description | Return Status Code |
|---|---|---|---|
| Serial Number Service | 00 | Fetches the 128-bit device serial number. | 0: Success |
| USERCODE Service | 01 | Fetches the 32-bit USERCODE/Silicon signature. | |
| Design Information Service | 02 | Returns design information including 256-bit user defined design ID, 16-bit design version, and 16-bit design back-level protection value. | |
| Device Certificate Service | 03 | Fetches the device’s Supply Chain Assurance Certificate from pNVM. |
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| Read Digests Service | 04 | Returns the stored digests for the device. | 0: Success |
| Query Security Service | 05 | Fetches non-volatile states of user security locks. | |
| Read Debug Information Service | 06 | Fetches debug information on programming, user initialization, device programming cycle count, and In-application programming (IAP) actions. | |
| Read eNVM Parameters Service (For PolarFire® SoC FPGA Only) | 07 | Retrieves all parameters needed for eNVM operation and programming. |
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