IP175

IP175 is a 5 port 10/100 Ethernet integrated switch. It consists of a 5-port switch controller and five Fast Ethernet transceivers. Each of the transceivers complies with the IEEE802.3, IEEE802.3u, and IEEE802.3x specifications. The transceivers in IP175 are designed in DSP approach with advance 0.25um technology; this results in high noise immunity and robust performance.

The IP175 operates in store and forward mode. It stores the incoming packet to the internal SSRAM and learns the SA (source address) automatically if the packet is error free. The SA is stored in the internal address table. IP175 forwards a packet according to DA destination address and address table. When the segments of destination ports are free, it reads the packet from the internal SSRAM and forwards it to the appropriate ports according to the address table. The incoming packets with errors are dropped. IP175 supports IEEE802.3x, optional backpressure, and various LED functions, etc. These functions can be configured to fit the different requirements by feeding operation parameters via EEPROM interface or pull up/down resistors on specified pins.