IP175A:LAN以太网芯片
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产品名称:
IP175A:LAN以太网芯片
产品型号:
IP175A:
产品展商:
深圳市卓杰电子有限公司
简单介绍
IP175A: 5 Port 10/100 Ethernet Integrated Switch
IP175A:LAN以太网芯片的详细介绍
general desc-riptionip175a is a low cost 10/100 ethernet single chip switch.it integrates a 5-port switch controller, ssram, and 5 10/100 ethernet transceivers. each of the transceivers complies with the ieee802.3, ieee802.3u, and ieee802.3x specifications. the transceivers are designed in dsp approach with 0.25um technology; they have high noise immunity and robust performance. ip175a operates in store and forward mode. it supports flow control, auto mdi/mdi-x, cos, port base vlan, and led functions, etc. each port can be with auto-negotiation or forced 10m/100m, full/half duplex, 100basefx. using an eeprom or pull up/down resistors on specified pins can configure the desired options. ip175a does not support “force 10m half mode”. ip175a supports two mii ports for router application, which supports 4 lan ports and one wan port. mii0 is for lan traffic and mii1 is for wan traffic and no external phy is needed. both mii can work in phy mode andinterface to the external mac in this application. the external mac can monitor or configure ip175a by accessing mii registers through smi. mii0 also can be configured to be mac mode. it is used to interface an external phy to work as a 4+1 switch.features5 port 10/100 ethernet switch with built in transceivers and memorybuild in ssram for frame bufferbuilt in storage of 1k mac addresssupport flow control- support ieee802.3x for flow control for full duplex mode operation- support backpressure for flow control for half duplex mode operation 5 port switching fabric- support two-level hashing algorithm to solve mac address collision- support mac address aging- store and forward mode- broadcast storm protection- full line speed capability of 148800 (14880) packets/sec for 100m (10m)- support 1536 byte data transfer for vlan packet traffic- port base vlan- port base cos configurationintegrate 5 ports transceiver- each port can be auto negotiable or forced 10m/100m, full/half duplex- each port can be configured as 100basefx- automatic mdi/mdi-x configurationsupport two mii, one smi and extended mii registers for router applicationbuilt in regulatorled status of link, activity, full/half duplex, speed, and power on diagnostic functioninitial parameter setting by pin or eeprom (24lc01) configurationutilize single clock source (25mhz)0.25um technology
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