Device Family: Intel® Arria® 10 GT, Intel® Arria® 10 GX, Intel® Arria® 10 SX, Arria® II GX, Arria® II GZ, Arria® V GT, Arria® V GX, Arria® V GZ, Arria® V ST, Arria® V SX, Arria® GX, Cyclone® IV GX, Cyclone® V GT, Cyclone® V GX, Cyclone® V ST, Cyclone® V SX, Intel® Stratix® 10 GX, Intel® Stratix® 10 SX, Stratix® II, Stratix® II GX, Stratix® III, Stratix® IV E, Stratix® IV GT, Stratix® IV GX, Stratix® V E, Stratix® V GS, Stratix® V GT, Stratix® V GX

Type: Answers

Area: Intellectual Property


IP Product: Triple Speed Ethernet MAC

Do the LED_AN or LED_LINK signals of Triple Speed Ethernet IP Core reflect the copper link status when the IP Core is in SGMII MAC mode?

Description

No, LED_AN / LED_LINK signals or AUTO_NEGOTIATION_COMPLETE / LINK_STATUS registers do not reflect the copper link status but SGMII link status.

Workaround/Fix

In SGMII MAC mode, you need to read COPPER_LINK_STATUS register (PCS register address 0x05 bit[15]) to ascertain the copper link status.