Gearbox_10_to_4_ser8 - 16.2 English

1G/2.5G Ethernet PCS/PMA or SGMII LogiCORE IP Product Guide (PG047)

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16.2 English

Converts 10-bit data clocked at 125 MHz to 4-bits data clocked at 312.5 MHz. This 4-bit parallel data is then presented to OSERDES which converts it into serial stream of 1.25 Gbps.

The following file describes the gearbox 10 to 4 bit logic: