KS8695

KS8695 Product Brief Revision 1.07 CENTAUR Integrated Multi-Port Gateway Solutions The KS8695 “Multi-Port Gateway-on-a-Chip” delivers a new level of networking integration and performance for speeding broadband gateway development. The key components integrated in the KS8695 include: • Integrated layer-2 managed switch with five Fast Ethernet transceivers and patented mixed-signal low-power technology; five MAC units; a high-speed non-blocking switch fabric; a dedicated address lookup engine; an on-chip frame buffer memory and LED controls. One port is partitioned for WAN interface with the other 4 ports for LAN access. • A 185-MIPS ARM 922T processor with memory management unit (MMU) and 8kB I-cache and 8kB D-cache. • An independent MAC unit supporting MAC or PHY mode MII interface for networking expansion. • On checksum errors and TCP/UDP/IP packet header checksum generation. The protocol engine applies to the WAN, LAN and EMAC interfaces. • DMA engines with burst mode support; Tx and Rx FIFOs to streamline the data transfers between WAN and CPU, CPU and LAN, CPU and EMAC. • Shared programmable 8/16/32-bit data bus and 22-bit address bus with up to 64MB total memory space for SDRAM, ROM, Flash, SRAM and all peripheral devices. • Other peripheral support logic including GPIO, a watchdog timer, an interrupt controller and a JTAG debugging interface. Complete hardware & software reference designs are available. The KS8695 represents a new level of total solution optimized for broadband gateway system development and renders speedy routing performance & connectivity interfaces for value-added networking expansions. Block Diagram XceleRouter is a trademark of Micrel, Inc. ARM is a registered trademark of ARM Limited. Micrel Semiconductor TEL: 1.800.401.9572 FAX: 1.408.474.0159 HTTP:// www.micrel.com 1 Features • The CENTAUR KS8695 featuring XceleRouter™ Technology, is a single-chip Multi-Port Gateway-on-aChip with all the key components integrated for a highperformance and low-cost broadband gateway ARM922T high-performance CPU core - 185 MIPS ARM922T core at 166MHz - 8kB I-cache and 8kB D-cache - Memory Management Unit (MMU) for Linux - 32-bit ARM and 16-bit Thumb instruction sets XceleRouter™ Technology - TCP/UDP/IP packet header checksum generation to offload CPU tasks - IPv4 packet filtering on checksum errors - Automatic error packet discard Integrated switch engine & transceivers: - Five 10/100 transceivers and MACs (1P for WAN interface, 4P for LAN switching) - 100Base-Tx, 10Base-T and 100Base-Fx modes (Fx in the WAN port). - On-chip SRAM as frame buffer memory - Wire-speed switching - VLAN ID and 802.1p tag/untag options - Extensive MIB counter management support - IGMP snooping for multicast packet filtering - Port-based VLAN - QoS/CoS packet prioritization support: per-port, 802.1p and DiffServ based - 802.1d spanning tree protocol - Dedicated 1K-entry look-up engine - Automatic MDI/MDIX crossover on all ports - Port mirroring/monitoring/sniffing - Broadcast storm protection with % control - Full and half-duplex flow control Memory and external I/O interfaces - 8/16/32-bit wide shared data path for SDRAM, ROM/ SRAM/flash & external I/O - Total memory space up to 64MB - Intel/AMD-type flash support WAN/LAN/EMAC DMA Engines & FIFO - DMA engine with burst mode support for efficient WAN, LAN and EMAC data transfers - FIFOs for back-to-back packet transfers • • • • • • • Peripheral Support - One MII interface (MAC or PHY mode) - 8/16/32-bit external I/O interface supporting PCMCIA or generic CPU/DSP host I/F - Eight general-purpose input/output (GPIO) - Two 32-bit timer counters (one watchdog) - Interrupt controller - ARM922T JTAG debug interface Power management - Reduced CPU and system clock speeds System design - 208-pin PQFP package - Up to 166MHz CPU and 125MHz bus speed Reference HW/SW evaluation kit - Hardware evaluation board (passes class B EMI) - Board support package including firmware source codes, Linux kernel, software stacks - Documentation for design & programming Multi-port broadband gateway Multi-port firewall & VPN appliances Combo wireless and wireline gateway Multi-port VoIP gateway Fiber-to-the-Home managed CPE Applications • • • • • • • 2 Micrel Semiconductor TEL: 1.800.401.9572 FAX: 1.408.474.0159 HTTP:// www.micrel.com Peripheral Options and Examples Micrel Semiconductor TEL: 1.800.401.9572 FAX: 1.408.474.0159 HTTP:// www.micrel.com 3 Contact Micrel Semiconductor Location Corporate HQ Eastern USA Southeast USA Central USA Western USA Northwest USA Southwest USA Korea Taiwan China Japan Europe Western Europe Address 1849 Fortune Drive 93 Branch Street 8105 Bluffridge Drive 722 S. 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