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IP175B 4+1xTMII/MII/RMII Port 10/100M Ethernet Integrated Switch

General Description :


IP175BLF integrates a 5-port switch controller, SSRAM, and 4 10/100 Ethernet transceivers. Each of the transceivers compliers with the IEEE802.3, IEEE802.3u, and IEEE802.3x specifications. The DSP approach is utilized for designing transceivers with 0.16um technology; they have high noise immunity and robust performance.

IP175BLF operates in store and forward mode. IP175BLF have a lot of rich feature for different application, include router application, firewall, IEEE 802.1Q, IGMP snooping, policy-based QoS. It provides powerful QoS function, include traffic policy, traffic meter, and flexible queue scheduling (WRR/WFQ/SP). In virtual LAN, IP175BLF support port-based VLAN and IEEE 802.1Q tag-tagged VLAN (up to 16 VLAN groups).

IP175BLF support up to 2K MAC addresses, up to 16 VLANs and up to 8 Multi-Field entries. These tables are accessible through MII register. The address table can configure either “2K unicast addresses” or “1K unicast addresses and 1K multicast addresses“. The Multi-Field classification is powerful classifier (layer2 to layer 4 packet headers) in packet classification. The classifier divides incoming packets into multiple classes based on prescribed rules. Each traffic class from classifier can drop out-of-profile packets, monitor traffic, specify forwarding behavior, and specify output queue.

Beside a 5-port switch application, IP175BLF supports one MII/RMII ports for router application. The external MAC can monitor or configure IP175BLF by accessing MII registers through SMI0.

MII/RMII port also can be configured to be MAC mode. It is used to interface an external PHY to work as 4+1 switch.

Feature :

  • Built in 5 MAC and 4 PHY

  • Each port can be configured to be 10Based-T, 100Base-TX

  • Up to 2K MAC addresses

  • Support auto-polarity for 10Mbps

  • Broadcast storm protection

  • Auto MDI-MDIX

  • Support one MII/RMII port

  • Layer2-4 Multi-Field classifier

    - Support 8-MultiField entry

    - Support traffic policy

    - Support Multi-Filed filter

    - Support copy to mirror port

    - Support trap to CPU port

  • Class of Service

    - Port based, MAC address, VID, VLAN priority, IPv4 ToS, IPv6 DSCP,TCP/UDP logical port and Multi-Field

  • QoS

    - Support policy-based QoS

    - Support 4-level priority queues per port

    -  WRR/WFQ/SP

  • Support hardware IGMP v1,v2 snooping

  • Support Port mirror

  • Support 16 VLAN (IEEE Std 802.1q)

    - Port-based/tagged-based VLAN

    - Shared/Independent VLAN Learning

    - Support insert, remove tag

    - Support VLAN priority remarking 

  • Support STP, RSTP and MSTP

  • Support port-based access control

  • Supports rate control(WFQ)

    - In/Out port rate control

    - Traffic Policy

  • Interrupt Pin

  • Support special tag and QinQ header

  • Support Link quality LED for 100Mbps

  • Support direct LED

  • Built in Linear regulator control register

  • Support auto power saving mode

    0.16um, 68-pin QFN Lead Free package


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