KS8695X Micrel
M9999-102604 2 October 2004
Features
• The CENTAUR KS8695X featuring XceleRouter tech-
nology is a single-chip multi-port gateway-on-a-chip with
all the key components integrated for a high-perfor-
mance and low-cost broadband gateway
• ARM922T High-Performance CPU Core
– ARM922T core at 166MHz
– 8KB I-cache and 8KB D-cache
– Memory management unit (MMU) for linux and
WinCE
®
– 32-bit ARM and 16-bit thumb instruction sets for
smaller memory footprints
• 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 and Transceivers
– Five 10/100 transceivers and five MACs (1P for WAN
interface, 4P for LAN switching)
– 10BASE-T, 100BASE-TX, and 100BASE-FX modes
(FX on 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 support
– Dedicated 1K entry look-up engine
– Automatic MDI/MDI-X 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 and external I/O
– Total memory space up to 64MB
– Intel
®
/AMD
®
-type Flash support
• WAN and LAN DMA Engines and FIFO
– DMA engine with burst mode support for efficient
WAN and LAN data transfers
– FIFOs for back-to-back packet transfers
• Peripheral Support
– 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
– 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, and software stacks
– Documentation for design and programming
• Commercial Temperature Range: 0°C to +70°C
• Available in 208-Pin PQFP
Applications
• Multi-port broadband gateway
• Multi-port firewall and VPN appliances
• Combination wireless and wireline gateway
• Multi-port VoIP gateway
• Fiber-to-the-home managed CPE
Ordering Information
Part Number Temperature Range Package
KS8695X 0°C to +70°C 208-Pin PQFP
