Product Preview MICROSEMI MAX24287 ETHERNET BUS CONVERTER The MAX24287 Ethernet bus converter is a flexible, low cost Ethernet interface conversion device for interfacing a parallel gigabit media independent interface (GMII)/ MII interface to a serial GMII/1000BASE-X interface. This device is ideal for interfacing single-channel GMII/MII devices such as microprocessors, field programmable gate arrays (FPGAs), network processors, Ethernet-over-SONET or –PDH mappers and TDM-over-packet circuit emulation devices. The device also provides a convenient solution to interface such devices to electrical or optical Ethernet SFP modules. Bus Conversion Solutions Address Key Customer Pains • Evolution of Ethernet standards has created multiple generations of components with different MII Interfaces • No other easy, flexible off the shelf solution to resolve the MII interface mismatch • Alternative solution with back to back PHYs is expensive and inefficient • Shortened life of cost efficient earlier generation processors due to MII interface mismatch increase BOM cost MAX24287 Block Diagram rxd(7:0) rxclk rx_dv rx_er col crs D Receive GMII RGMII TBI RTBI MII C D Rate Adaptation Buffer C RD(9:0) PCS Decoder (10b/8b) 125 MHz RD DeSerializer Receive 1.25 GHz CDR Easy to Design rdp rdn • Connects with neighbor components using industry-standard interfaces • Simple configuration over high-speed MDIO interface • Small footprint 8x8 mm TQFN txd(7:0) gtxclk txclk tx_en tx_er Transmit GMII RGMII TBI RTBI MII D D TD(9:0) TD C C 125 MHz 625 MHz Rate Adaptation Buffer PCS Encoder (8b/10b) Serializer Transmit Driver tdp tdn tclkp tclkn Flexible • Supports a wide range of serial and parallel interfaces and fits the majority of applications • Serial: 1000BASE-X or SGMII • Parallel: GMII, RGMII, TBI, RTBI or 10/100 MII mdio mdc rst_n alos • GPIOs can be used as clocks and status Control and Status GPIO Control TX PLL refclk Built-in Support for Synchronous Ethernet GPO(1:0) GPIO(1:7) • Data paths designed for SyncE clocking • Provides SyncE reference to be used by the clock tree • Receive clock divided and available on GPIO • Transmit clock locked to a system reference Availability and Support Microsemi Clock Management products are in volume production. To learn more about Microsemi’s bus converter products, visit www.microsemi.com/timing-and-synchronization/ieee1588/max24287#overview. Full information, including complete data sheets and design manuals, is available to registered MyMicrosemi customers. To register for a MyMicrosemi account, visit www.microsemi.com/create-an-account. Applications • Any system with a need to interface a component with a parallel MII interface (GMII, RGMII, TBI RTBI, 10/100 MII) to a component with an SGMII or 1000BASE-X interface • Switches, Routers and Telecom equipment • Industrial and Test equipment Microsemi MAX24287 Ethernet Bus Converter Products Featured Products Application Examples Copper Media Processor, M A ASIC, C FPGA RXD[7:0] RX_CLK 125 MHz TXD[7:0] TX_CLK 125 MHz RD SGMII PHY TD TCLK 625 MHz (Optional) MAX24287 Connect Parallel MII Component to SGMII Component Processor, M ASIC, A FPGA C <GMII> <SGMII> RXD[7:0] RX_CLK 125 MHz TXD[7:0] RD TX_CLK 125 MHz M A C TD MAX24287 TCLK 625 MHz (Optional) Ethernet Switch Chip Long PCB Trace Card-to-Card <GMII> Processor, M ASIC, A FPGA C <SGMII> RXD[7:0] RX_CLK 125 MHz TXD[7:0] TX_CLK 125 MHz RD MAX24287 <GMII> Processor, M ASIC, A FPGA C Fiber Module Processor, M ASIC, A FPGA C <GMII> RD MAX24287 C O N N E C T O R 100 Ω PCS Trace 100 Ω PCS Trace C O N N E C T O R TD <GMII> TXD[7:0] TX_CLK 125 MHz RXD[7:0] TD RD MAX24287 GMII PHY RX_CLK 125 MHz <SGMII> 100 Ω PCS Trace C O N N E C T O R TD SGMII PHY RD <1000BASE-SX/LX> RXD[7:0] RX_CLK 125 MHz TXD[7:0] TX_CLK 125 MHz 100 Ω PCS Trace <SGMII> RXD[7:0] RX_CLK 125 MHz TXD[7:0] TX_CLK 125 MHz TD <SGMII> C O N N E C T O R RD Optical Module MAX24287 TD Microsemi Corporation (NASDAQ: MSCC) offers a comprehensive portfolio of semiconductor solutions for: aerospace, defense and security; enterprise and communications; and industrial and alternative energy markets. Products include high-performance, high-reliability analog and RF devices, mixed signal and RF integrated circuits, customizable SoCs, FPGAs, and complete subsystems. Microsemi is headquartered in Aliso Viejo, Calif. Learn more at www.microsemi.com. Microsemi Corporate Headquarters One Enterprise, Aliso Viejo CA 92656 USA Within the USA: +1 (949) 380-6100 Sales: +1 (949) 380-6136 Fax: +1 (949) 215-4996 © 2013 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners. Publication Number: MS7-006-13