SMBus Relay with filter (named I2C filter in this page) is designed to function as an invisible relay from the point of view of both Master and Slave devices on the bus. It is meant to be directly attached to the Master port and protect all Slave devices against malicious traffic generated from the Master port based on a whitelist of allowable commands set by the host (such as CPU, FPGA RoT design, and others). The filter IP is the subset of the SMBus protocol. SMBSUS# and SMBALERT# are not supported.
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Protects Secondary Devices from Malicious Traffic - The IP is meant to be directly attached to the Master port and protect all Slave devices against malicious traffic generated from the Master port based on a whitelist of allowable commands set by the host.
Compliant with the IP-XACT IEEE_1685 Standard - When used in the Lattice Propel Builder software, I2C filter is packaged to be compliant with the IP-XACT IEEE_1685 standard.