Agilex™ 3 Known Issue List

ID 855394
Date 11/14/2025
Public
Document Table of Contents

2. Known Issue List for Agilex™ 3 Devices

This section lists the known issues for the Agilex™ 3 production devices. Each listed issue has an associated status that identifies any planned fixes.

Table 2.  Device Issues
Issue Affected Devices (OPN) Planned Fix (OPN) Document Update Notification
FPGA
Transceiver
Occasional equalization timeout or PCIe link training failure to achieve expected link speed during speed change, hot reset, and link disable

A3Cx100BM16Axxx

A3Cx135BM16Axxx

No planned fix N/A N/A
Both ERR_COR and ERR_FATAL messages are sent when TLP with ECRC error is received

A3Cx100BM16Axxx

A3Cx135BM16Axxx

No planned fix N/A N/A
Multiple error messages are generated by the multifunction device when a non-function-specific error occurs

A3Cx100BM16Axxx

A3Cx135BM16Axxx

No planned fix N/A N/A
Transmission of all Ethernet frames is suspended upon reception of PAUSE frame request from External link partner

A3Cx100BM16Axxx

A3Cx135BM16Axxx

No planned fix N/A N/A
Reduced Reference Clock Frequency Options for Certain Output Frequencies in GTS System PLL Clocks IP

A3Cx100BM16Axxx

A3Cx135BM16Axxx

No planned fix N/A Customer Advisory to be published
DisplayPort IP Performance Instability Issue

A3CW135BM16Axxx

A3CY135BM16Axxx

This issue is planned to be fixed in a future release of the Quartus® Prime Pro Edition N/A N/A
IEEE 1588v2 PTP Accuracy Issue for GTS Ethernet Hard IP for 10GE Rate Designs

A3Cx100BM16Axxx

A3Cx135BM16Axxx

This issue is planned to be fixed in a future release of the Quartus® Prime Pro Edition N/A N/A
EMIF
No support for unaligned access to EMIF interfaces using Fabric Direct Access mode or HPS F2SDRAM bridge

A3CW100Bxxxxxxx

A3CW135Bxxxxxxx

A3CY100Bxxxxxxx

A3CY135Bxxxxxxx

No planned fix N/A N/A
Lower than expected efficiency for sequential access pattern on fabric EMIF when using secondary memory controller

A3CW100Bxxxxxxx

A3CW135Bxxxxxxx

A3CY100Bxxxxxxx

A3CY135Bxxxxxxx

No planned fix N/A N/A
HPS
The USB 3.1 controller has a spillover condition during IN transfers for bulk endpoint which causes a DBE issue for the ISOC-IN Endpoint

A3CW100BM16Axxx

A3CW135BM16Axxx

No planned fix N/A N/A
USB 3.1 Controller Device Drops eSS ISOC Data if the ITP Delta Value is Greater than 63 units

A3CW100BM16Axxx

A3CW135BM16Axxx

No planned fix N/A N/A
The USB 3.1 controller has a possible glitch on the clock output during U3 to U0 power state transition

A3CW100BM16Axxx

A3CW135BM16Axxx

No planned fix N/A N/A
HPS GICv3 ITS unable to access physical memory larger than 32 bits causing MSI-X Interrupt failure

A3CW100BM16Axxx

A3CW135BM16Axxx

No planned fix N/A Customer Advisory to be published
SD/eMMC Host Controller Capabilities Register provides incorrect information with regard to 8-bit Embedded Device Support

A3CW100BM16Axxx

A3CW135BM16Axxx

No planned fix N/A Customer Advisory to be published