Meaning in datasheet, when it says that you can write to the FIFO from DC to 50 MHz

Question: What does the datasheet mean when it says that you can write to the FIFO from DC to 50 MHz?

 

Answer:

This basically means that you can write to or read from the FIFO's at any speed up to 50 MHz (even though the maximum REFCLK frequency is 40 MHz). This adds flexibility for the designer.


Aside: Note however, that if you stop the TX FIFO clock, the "last" character written may remain in the FIFO input register and not be transferred to the FIFO core.

Useful Link:
TAXI-compatible HOTLink Transceiver (Attachment below 38-02020)

200-MBaud HOTLink Transceiver (Attachment below 38-02008)