Cisco QSGMII Specification.pdf

TheQuadSerialGigabitMediaIndependentInterface(QSGMII)isdesignedtosatisfythefollowingrequirements: •Convey4portsofnetworkdataandportspeedbetweena10/100/1000PHYandaMACwithsignificantlylesssignalpinsthanrequiredforGMII&SGMII. •Operateinbothhalfandfulldupl