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The serial gigabit media-independent interface (SGMII) is a variant of MII used for Gigabit Ethernet but can also carry 10/100 Mbit/s Ethernet. It uses differential pairs at 625 MHz clock frequency DDR for TX and RX data and TX and RX clocks. It differs from GMII by its low-power and low pin-count 8b/10b-coded SerDes. Transmit and receive path each use one differential pair for data and another differential pair for clock. The TX/RX clocks must be generated on device output but are optional on device input (clock recovery may be used alternatively). 10/100 Mbit/s Ethernet is carried by duplicating data words 100/10 times each, so the clock is always at 625 MHz.

Protocol Analyzer

Supported Model: BusFinder7264B with SGMII option

– Simultaneously display PCS or GMII protocol packet data in tabular form, including command parsing.
– “Data Filter” & “Idle Filter” filter unwanted data and idle to save memory.
– “Search” searches specific data.
– SGMII PCS & GMII statistics include numbers of packets, individual command, different data length, and errors.
– Support 10Mbps/100Mbps/1000Mbps

SGMII command trigger
a. Trigger parameters include commands and data in order to cover all kinds of packets.
b. GMII & PCS Packet
c. Trigger CRC Error, Frame Error, Propagation Error, Start of Packet, End of Packet, Carrier Extend, Configuration.
d. The Trigger-Out port is to trigger a DSO to capture waveforms

SGMII command trigger- PCS Trigger

SGMII command trigger- GMII Data Trigger

SGMII(PHY) & GMII(MAC) packet analysis data are displayed simultaneously in the report table. The report also contains statistics on packets.

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