product overview the marvell horizon a GT-96122 communications controller is the industry-leading solution for channelized wan applications such as low to mid-range routers and access line cards that are architected around mips processors. the horizon controller enables convergence of voice, video and data for lan/wan enterprise routers. the integrated netgx a off-loading engine provides ready-to-use solutions for ipsec off-loading, atm acceleration and higher-level flow classification. other integrated system controller functions such as pci bridges, ethernet media access controllers (macs), dram controller, interrupt controllers, and timers provide design flexibility and shorter time-to-market. communications controllers features 64-bit mips cpu bus interface e pmc-sierraa/qed rm526x, rm527x, rm7000x, and other mips r4xxx/r5xxx processor support e 100 mhz cpu bus frequency (2.5v or 3.3v configuration) high-performance 64-bit sdram controller e 100 mhz memory interface e 4 gb address space e supports 2-way and 4-way bank interleaving high-performance pci 2.1/66 mhz interface e dual 32-bit or single 64-bit configurable e programmable pci bus arbiter e i20 and plug-and-play support two 10/100 mbps fast ethernet (fe) macs e mii or rmii interface e programmable packet filtering (up to 8k mac addresses) e 4 transmit and 2 receive priority queues e hardware-based priority queuing by - mac address - 802.1p tag - diffserv (layer 3 header) eight flextdm channels and multi-channel serial controllers (mcsc) e fully programmable for all standard and proprietary tdm interfaces e support up to 256 channels e 512 virtual dma channels eight multi-protocol serial controllers (mpsc) e hdlc, bisync, uart, and transparent mode e up to 55 mbps operation benefits accommodates the most powerful 64-bit risc processors for high-performance communications systems accomodates all popular memory devices expands system functionality with support for pci legacy devices versatile and high-performance ethernet interfaces: e mii interfaces for easy connection to ethernet lan e rmii interfaces for reduced pin count chip-to-chip connections ethernet macs support high-performance features with 8k mac multi-cast addresses, 2 receive and 4 transmit priority queuing (based on mac address, 802.1q tag or diffserv) support all standard tdm interfaces up to 256 channels for multiple t1 lines or partial t3 line provide design flexibilty with support for multiple protocols communications controller for mips processor GT-96122 hdlc 64-bit 64-bit/66 mhz cpu boot flash sdram intranet 10/100 ethernet 10/100 ethernet intranet t1 t1 t1 wan interface wan interface wan interface wan interface t1 64-bit cpu bus 8-bit pci auxiliary port (uart) debugport(uart) pci arbiter netgx a coprocessor quad t1 framer &liu hdlc hdlc hdlc fig 1. horizon communications controller block diagram horizon
horizon communications controller for mips processor 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 and prestera are trademarks of marvell. all other trademarks are the property of their respective owners. 100206-001 04/02 features integrated netgx off-loading engine e 32-bit customized risc processor e 16k i-cache, 8k d-cache e customized instructions for des/3des encryption, tcp/ip checksums and crc error correction e ready-to-use binaries for atm and ipsec acceleration high-performance 64-bit device controller e 4 chip selects and dedicated boot chip select e 512 mb address space 88 general purpose i/o pins advanced 0.18-micron process e 1.8v core e 2.5v/3.3v cpu interface e 3.3v i/o voltage e 5v tolerant pci interface e 100 mhz speed 20 dedicated serial dma engines for mpscs and ethernet macs 492 bga package benefits powerful and flexible coprocessor architecture: e netgx off-loading engine performs ipsec, atm or flow classification tasks and preserves system cpu performance power for more critical applications ready-to-use netgx binaries minimize customers? software development and shorten time-to-market integrated device bus that controls 8- or 16-bit input/output (i/o) peripherals for design flexibility provide maximum system design flexibility at lowest costs advanced and reliable 0.18-micron technology provide maximum performance for each serial port consumes minimum board space the marvell advantage: the marvell horizon communications controller for mips processor comes with a complete set of hardware and software development tools to assist network hardware engineers with product evaluation. marvell?s worldwide field 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.
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