transceiver solutions product overview the marvell alaska family of gigabit ethernet (gbe) over copper transceivers are the industry?s lowest power, smallest form factor, highest performance, and highest port density solutions in volume production. the alaska octal (88E1180) transceiver is the industry?s trst and only 8-port gbe transceiver and offers the lowest power dissipation at only 0.75 w/port. each transceiver performs all of the physical layer functions for 100base-tx and 1000base-t full or half duplex ethernet on category 5 (cat 5) twisted pair cable, and 10base-t full or half duplex ethernet on cat 3, 4 and 5 cable. the alaska octal device offers additional support of 1000base-x through an integrated 1.25 ghz serializer/deserializer (serdes). features benefits highly integrated 8-port device enables highly integrated gigabit switches ultra low power, 0.75 w/port enables higher integration and reduced system cost 10/100/1000base-t ieee 802.3 compliant compatibility with existing installed base of compliant devices supports rgmii/sgmii/rtbi interfaces reduces cost and simplites pcb layout virtual cable testera feature identification and isolation of cable faults integrated 1.25 ghz serdes supports 1000base-x tber applications media detect feature automatically detects and contgures to either complete media ?exibility copper or tber media automatic support for 2-pair cat 5 cable (100 mbps) operates over installed 2-pair cable power management modes reduced system power four rgmii timing modes eliminates the need for on-board delay lines operation up to 180 meters cat 5 cable functions over a wider base of cabling infrastructures auto-mdi/mdix crossover for all modes of operation eases installation and reduces cost support ieee 1149.1 (jtag) and nand-tree ict simplites board level testing/debugging advanced mixed-signal and dsp techniques advanced dsp design fig 1. alaska octal gbe transceiver block diagram p0_led_link10 p0_led_link100 p0_led_link1000 p0_led_duplex p0_led_rx p0_led_tx gconfig[1:0] trst# tck tdi tms tdo 10/100/1000 transmit pcs management interface led/ contguration bias/test registers auto-negotiation p0_tx_ctl p0_txd[3:0] p0_gtx_clk p0_rx_ctl p0_rxd[3:0] p0_rx_clk xtal1 xtal2 resetn 125clk p0_s_in+/- p0_s_clk+/- p0_s_out+/- p0_mdc p0_mdio p0_intn p0_rset p0_hsdacp/n p0_tstpt timing control d/a waveshape filter a/d skew control feed forward equalizer dpll trellis decoder decision feedback equalizer echo canceller near end crosstalk canceller clock/reset jtag active hybrid gain control baseline 10base-t receiver 10/100/1000 receive pcs fiber/serdes transmit alaska octal gigabit ethernet transceiver 88E1180
alaska octal gigabit ethernet transceiver marvell semiconductor, inc. 700 first avenue sunnyvale, ca 94089 phone 408.222.2500 www.marvell.com ?2002 marvell international ltd. all rights reserved. marvell, the marvell logo, moving forward faster, alaska, the galileo logo, and galnet are registered trademarks of marvell. discovery, fastwriter, galileo technology, galtis, horizon, libertas, prestera, and virtual cable tester are trademarks of marvell. all other trademarks are the property of their respective owners. 88E1180-002 09/02 applications the marvell alaska octal gbe transceiver enables higher port count gigabit switches, up to 48 ports and beyond, offering the industry?s highest integration and lowest power dissipation. through integrated serdes technology, the device also offers optional support for 1000base-sx/lx gigabit tber standards, on a per port basis, enabling mixed-media gigabit switches. the device supports the rgmii, sgmii and rtbi phy/mac interface options. the alaska octal transceiver combined with the marvell prestera a gigabit ethernet switches provide systems manufacturers with a complete networking solution from the phy to the switch fabric, and allow for the development of high port count gigabit ethernet switches with the fewest number of devices possible. for example, a 24-port gigabit ethernet switch can now be comprised of just tve marvell chips (three alaska octal phys and two prestera-ex switches)?less than half the number of components previously required. the marvell advantage: the marvell alaska octal gbe transceiver comes with a complete set of hardware and software development tools to assist network hardware engineers with product evaluation. marvell?s worldwide teld applications engineers collaborate closely with network equipment vendors to develop and deliver new competitive products to market on time. marvell utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions. for more information, visit our website at www.marvell.com. fig 3. alaska octal gbe transceiver fiber application diagram fig 2. alaska octal gbe transceiver copper application diagram media types: 1000base-sx 1000base-lx mac interface options: rgmii rtbi serial interface (serdes) ethernet gigabit mac port 0 fiber optics port 0 ethernet gigabit mac port 7 ethernet gigabit mac port 1 fiber optics port 7 fiber optics port 1 alaska octal phy media types: 10base-t 100base-tx 1000base-t 10/100/1000 mbps ethernet mac port 0 10/100/1000 mbps ethernet mac port 1 10/100/1000 mbps ethernet mac port 7 rj45 port 0 rj45 port 1 rj45 port 7 alaska octal phy magnetics mac interface options: rgmii sgmii rtbi serial interface (serdes) features benefits ieee 802.3u compliant auto-negotiation automatically contgures to 10, 100 or 1000 mbps active internal hybrids for 1000base-t lower cost magnetics direct drive led support eliminates cost of external led latches and drivers software contgurable led support user-detned led contguration user programmable phy address works with all existing gigabit switch designs loopback mode assists testing and diagnostics
|
