KS8995MA Product Brief Revision 2.0 Integrated 5-Port 10/100 Managed Switch The KS8995MA is a highly integrated Layer-2 managed switch with optimized BOM (Bill of Materials) cost for low port count, cost-sensitive 10/100Mbps switch systems. It also provides an extensive feature set such as tag/port-based VLAN, QoS priority, management, MIB counters, dual MII interface and CPU control/data interfaces to effectively address both current and emerging Fast Ethernet applications. The KS8995MA contains five 10/100 transceivers with patented mixed-signal low-power technology, five MAC (Media Access Control) units, a high-speed nonblocking switch fabric, a dedicated address lookup engine, and an on-chip frame buffer memory. All PHY units support 10Base-T and 100BaseTX. In addition, two of the PHY units support 100BaseFX (Ports 4 and 5). Features • • • • • • • • • • Integrated switch with five MACs and five Fast Ethernet transceivers fully compliant to IEEE 802.3u standard Shared memory based switch fabric with fully nonblocking configuration 1.4Gbps high performance memory bandwidth 10BaseT, 100BaseTX and 100BaseFX modes (FX in Ports 4 and 5) Dual MII configuration: MII-Switch (MAC or PHY mode MII) and MII-P5 (PHY mode MII) IEEE 802.1q tag-based VLAN (16 VLANs, full-range VID) for DMZ port, WAN/LAN separation or interVLAN switch links VLAN ID tag/untag options, per-port basis Programmable rate limiting 0Mbps to 100Mbps, ingress and egress port, rate options for high and low priority, per port basis Flow control or drop packet rate limiting (ingress port) Integrated MIB counters for fully compliant statistics gathering, 34 MIB counters per port Block Diagram 10/100 T/Tx 1 10/100 MAC 1 Auto MDI/MDIX 10/100 T/Tx 2 10/100 MAC 2 Auto MDI/MDIX 10/100 T/Tx 3 10/100 MAC 3 Auto MDI/MDIX 10/100 T/Tx/Fx 4 10/100 MAC 4 Auto MDI/MDIX MII-P5 MDC, MDI/O MII-SW or SNI 10/100 T/Tx/Fx 5 10/100 MAC 5 Control Reg I/F LED0[5:1] LED1[5:1] LED2[5:1] SNI LED I/F FIFO, Flow Control, VLAN Tagging, Priority Auto MDI/MDIX 1K look-up Engine Queue Mgmnt Buffer Mgmnt Frame Buffers SPI MIB Counters Control Registers EEPROM I/F KS8995MA Micrel Semiconductor TEL: 1.408.944.0800 FAX: 1.408.955.1666 HTTP:// www.micrel.com 1 Features Applications • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 2 Enable/Disable option for huge frame size up to 1916 bytes per frame IGMP v1/v2 snooping for multicast packet filtering Special tagging mode to send CPU info on ingress packet’s port value SPI slave (complete) and MDIO (MII PHY only) serial management interface for control of register configuration MAC-id based security lock option Control registers configurable on-the-fly (port-priority, 802.1p/d/q, AN...) CPU read access to MAC forwarding table entries 802.1d spanning tree protocol Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port or MII Broadcast storm protection with percent control – global and per-port basis Optimization for fiber-to-copper media conversion Full-chip hardware power-down support (register configuration not saved) Per-port based software power-save on PHY (idle link detection, register configuration preserved) QoS/CoS packets prioritization supports: per port, 802.1p and DiffServ based 802.1p/q tag insertion or removal on a per port basis (egress) MDC and MDI/O interface support to access the MII PHY control registers (not all control registers) MII local loopback support On-chip 64kB memory for frame buffering (not shared with 1K unicast address table) Wire-speed reception and transmission Integrated look-up engine with dedicated 1K MAC addresses Full duplex IEEE 802.3x and half-duplex back pressure flow control Comprehensive LED support 7-wire SNI support for legacy MAC interface Automatic MDI/MDI-X crossover for plug-and-play Low power 1.8V, 2.5V or 3.3V, 0.18µm CMOS technology Available in 128-pin PQFP package Micrel Semiconductor Broadband gateway/firewall/VPN Integrated DSL or cable modem multi-port router Wireless LAN access point plus gateway Home networking expansion Standalone 10/100 switch Hotel/campus/MxU gateway Enterprise VoIP gateway/phone FTTx customer premise equipment Managed media converter TEL: 1.408.944.0800 FAX: 1.408.955.1666 HTTP://www.micrel.com Switch Controller On-Chip Frame Buffers System Level Applications SPI/GPIO 10/100 MAC 1 10/100 PHY 1 10/100 MAC 2 10/100 PHY 2 10/100 MAC 3 10/100 PHY 3 10/100 MAC 4 10/100 PHY 4 10/100 MAC 5 10/100 PHY 5 4-port LAN 1-port WAN I/F SPI Ethernet MAC MII-SW MII-P5 CPU Ethernet MAC External WAN port PHY not needed Switch Controller On-Chip Frame Buffers Figure 1. Broadband Gateway WAN PHY & AFE (xDSL, CM...) SPI/GPIO 10/100 MAC 1 10/100 PHY 1 10/100 MAC 2 10/100 PHY 2 10/100 MAC 3 10/100 PHY 3 10/100 MAC 4 10/100 PHY 4 10/100 MAC 5 10/100 PHY 5 SPI MII-SW CPU 4-port LAN MII-P5 Ethernet MAC Figure 2. Integrated Broadband Router Micrel Semiconductor TEL: 1.408.944.0800 FAX: 1.408.955.1666 HTTP:// www.micrel.com 3 Switch Controller On-Chip Frame Buffers 10/100 MAC 1 10/100 PHY 1 10/100 MAC 2 10/100 PHY 2 10/100 MAC 3 10/100 PHY 3 10/100 MAC 4 10/100 PHY 4 10/100 MAC 5 10/100 PHY 5 5-port LAN Figure 3. Standalone Switch Contact Micrel Semiconductor 4 Location Address Corporate HQ 1849 Fortune Drive San Jose, CA 95131 USA Telephone +1 (408) 944-0800 Fax +1-408-944-0970 Eastern USA 93 Branch Street Medford, NJ 08055 USA +1 (609) 654-0078 +1 (609) 546-0989 Central USA 722 S. Denton Tap Suite 130 Coppell, TX 75019 USA +1 (972) 393-2533 +1 (972) 393-2540 Western USA 2180 Fortune Drive San Jose, CA 95131 USA +1 (408) 944-0800 +1 (408) 914-7878 Southwest USA 7545 Irvine Center Dr. Suite 200 Irvine, CA 92618 USA +1 (949) 623-8343 +1 (949) 623-8305 China Room 712, Block B, Int’l Chamber of Commerce, Fuhua Road 1, Futian Shenzhen, PR China 518026 +86 (755) 2693-4601 Korea 4F, KTB Building, 826-14, Yeoksam-dong, Kangnam-ku Seoul 135-080 Korea +82 (2) 3466-3000 +82 (2) 3466-2999 Taiwan 7F-6, No. 237, Sec. 2, Fu-Hsing South Road Taipei, Taiwan, R.O.C. +886 (2) 2705-4976 +886 (2) 2705-4977 Japan 1-16-15 Dogenzaka, Shibuyaku Tokyo 150-0043 Japan +81 (3) 5428-0871 +81 (3) 5428-0872 Europe 1st Floor, 3 Lockside Place, Mill Lane Newbury, Berks RG14 5QS UK +44 1635 524455 +44 1635 524466 Western Europe 10, avenue du Quebec, Villebon BP116 Courtaboeuf Cedex 91944 France +33 (0) 1 6092 4189 +33 (0) 6 0868 4489 Micrel Semiconductor TEL: 1.408.944.0800 FAX: 1.408.955.1666 HTTP://www.micrel.com Stock Code M1013-120303