BCM8071 ® SERIAL 10G BASE-KR TO XAUI™ BACKPLANE TRANSCEIVER SUMMARY OF BENEFITS FEATURES • New 10 GbE serial transceiver supporting high-bandwidth • Targeted to meet the draft IEEE 802.3ap standard backplane requirements • High performance DFE/FFE receive equalizer with full • MDIO interface compliant to IEEE 802.3ae clause 45 with adaptation on-chip extended indirect address register access • High performance equalization supports new and legacy • Single reference clock input enables use of a 156.25-MHz backplane channels. oscillator or low-cost 25-MHz crystal. • Auto-negotiates to 1.25/10G • Integrated microcontroller with no external memory required • Multiple interface support • Simplifies manufacturability with integrated built-in self test • PMD - Serial 10.3125-Gbps CML • Programmable amplitude control on 10G serial transmitter • 4-lane XAUI™ (3.125 Gbps) (BIST) and loopback modes on the 10G serial and XAUI interfaces. • XAUI link synchronization/deskew • Transmit pre-emphasis and receive equalization on the XAUI • XGXS 8B/10B error detection ENDEC interface • PCS 64B/66B scrambler/descrambler • Power dissipation: < 2W • Core supply: 1.0V; I/O: 3.3V APPLICATIONS • Loss-of-signal detection • Link activity indicator outputs • Backplane links • Integrated packet generator and checker • Copper-cable stackable links • 13 mm x 13 mm, FBGA, RoHS compliant package • On-board and board-board links BCM8071 Functional Block Diagram XAUI RS Media Access Controller Interface XGXS BCM8071 1000BASE-X 1000BASE-KX 10.3125 Gbps MAC REFCLK 25M or 156.25M Backplane Connector MDC Management Interface MDIO OVERVIEW Serializer 8B/10B Encoder PDIP CDR and Deserializer KR Equalizer AGC 322.26M 312.5M CMU 25 MHz, 156.25 MHz REFCLKP REFCLKN PDIN 10.3125 Gbps XDOP XDON 64/66B Synchronizer Descrambler Decoder Gearbox 8B/10B Encoder 3.125 Gbps Serializer Elastic FIFO XAOP XAON Randomizer BCM8071 8K ROM uC 8K RAM SPI 156.25M SPI RefClk Block 312.5M 312.5M MDIO MDC PRTAD[4:0] RSTB Error Flags Sync. Detect Lane Sync 8B/10B Decoder Lane Alignment FIFO 64/66B Synchronizer Descrambler Decoder Gearbox 3.125 Gbps DLL and De-serializer XDIP XDIN Sync. Detect Lane Sync 8B/10B Decoder 322.26M Elastic FIFO DLL and De-serializer XAIP XAIN Lane Alignment FIFO CMUR and Serializer PDOP PDON Management and Control Interface PRBS Genertor and Checker JTAG BCM8071 Block Diagram The BCM8071 is a 10-GbE Serial Transceiver targeting the new IEEE 10G BASE-KR standard for running 10G serial data over backplane systems. The device incorporates a sophisticated receive equalizer that extends the life of legacy systems today running 1G or XAUI data rates by providing a 4x or 10x bandwidth improvement on each channel. An on-chip microcontroller provides users with flexibility and ease of use by automatically adjusting the equalizer parameters based on the performance of each backplane channel. On-chip clock synthesis is performed by the high-frequency low-jitter phase-locked loops for the PMD and XAUI output retimers. Individual PMD and XAUI clock recovery is performed on the device by synchronizing directly to the respective incoming data streams. An external 25-MHz or 156.25-MHz oscillator is required for the reference clock input. The BCM8071 Ethernet 10G BASE-KR PHY is a fully integrated SerDes (10.3125 Gbps) interface device performing the extension functions for a 10-GbE Reconciliation Sublayer (RS) interface. The XGXS, PCS, and PMA functions include 8B/10B coding, 64B/66B coding, SerDes, Clock Multiplication Unit (CMU), and Clock and Data Recovery (CDR). The BCM8071 is available in a 13 mm × 13 mm, FBGA, RoHS compliant package. Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. ® BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2007 by BROADCOM CORPORATION. All rights reserved. 8071-PB01-R 03/14/07 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: [email protected] Web: www.broadcom.com