KSZ8462HLI/FHLI IEEE 1588 Precision Time Protocol.
Microchip
KSZ8462HLI - 10/100 Mbps Ethernet Switch
KSZ8462HLI/FHLI IEEE 1588 Precision Time Protocol-Enabled, Two-Port, 10/100 Mbps Ethernet Switch with 8- or 16-Bit Host Interface Features Managemen.