Device Family: Cyclone® III
Device Family: Cyclone® III LS
Device Family: Cyclone® IV E
Device Family: Cyclone® IV GX
Device Family: Cyclone® V E
Device Family: Cyclone® V GT
Device Family: Cyclone® V GX
Device Family: Cyclone® V SE
Device Family: Cyclone® V ST
Device Family: Cyclone® V SX
Type: Answers
Area: Intellectual Property
IP Product: Triple Speed Ethernet with 1588 MegaCore
Why can the LVDS I/O not be selected in the Triple Speed Ethernet MegaCore GUI for Cyclone series devices?
Description
LVDS I/O cannot be selected in the Triple Speed Ethernet MegaCore® GUI if the target device is a Cyclone® series device. This is because the LVDS serializer and deserializers (SerDes) cannot support 1.25 Gbps data rates required by Triple Speed Ethernet.
Workaround/Fix