10GBase-KR PHY

Altera provides a complete 10 Gbps Ethernet over backplane 10GBASE-KR physical coding sublayer (PCS), and physical media attachment (PMA) sublayer intellectual property (IP) known as PHY IP. This IP is designed to the IEEE 802.3ap (2007) Ethernet over backplane standard. Altera's 10GBASE-KR PHY MegaCore® function enables Ethernet connectivity at 1 Gbps and 10 Gbps (1G/10GbE) over system chassis copper backplanes. This interface PHY can be implemented in Altera® devices with integrated serial transceivers operating above 10.3125 Gbps and supporting backplanes.

Stratix® V and Arria® V GZ FPGAs provide fully integrated and silicon-proven 1G/10Gb Ethernet serial transceivers for interfacing to backplanes. Altera's 10GBASE-KR PHY IP core is composed of the 1Gb and 10Gb Ethernet serial transceiver hard IP, and soft IP including auto-negotiation (AN), link training (LT), 1 GIGE PCS, sequencer, control registers, and status registers for PHY management. The 10GBASE-KR PHY IP can be used for single to multiport backplane interface applications for performance scalability. Altera has developed and tested in hardware the combined 1G/10Gb Ethernet Media Access Controller (MAC) and 10GBASE-KR PHY design example.

The 10GBASE-KR PHY IP uses built-in transceivers in the Altera device, that saves system cost, board space, and the power required for an external 10GBASE-KR serializer/deserializer (SERDES) device. Figure 1 shows the 10GBASE-KR PHY high-level block diagram.

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