The QSGMII core provides the functionality to implement the sublayers as specified by the Cisco QSGMII specification.
The QSGMII core interfaces to a device-specific transceiver. The transceiver provides some of the PCS functionality, such as 8B/10B encoding/decoding, Physical Medium Attachment (PMA) Serializer/Deserializer (SerDes), and clock recovery. This Figure illustrates the remaining PCS sublayer functionality and also shows the major functional blocks of the core.
