FC106 Datasheet, PDF (12/32 Pages) STMicroelectronics – Fibre Channel Transceiver 1.0625 GBaud

FC106
3.10 Byte and word alignment
The word alignment function is performed under control of the EN_CDET signal.
When EN_CDET is high, the word alignment function is operational. If an improperly aligned
comma is encountered, the internal data is shifted to realign the comma character at the
deserializer output (RX[0:9]). In this process, up to three characters prior to the comma
character may be corrupted.
3.11 Clock recovery
The clock recovery block generates the two receiver byte clocks RBC[0:1] at half the
frequency corresponding to the RX+/RX- byte data rate. These two byte clocks are 180° out
of phase with each other. They are alternatively used to clock the 10-bit parallel output data.
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September 98
Revision 1.2