SNLS589B September 2016 – July 2018 DS90UB960-Q1
RX port specific register. The FPD-Link III Port Select register 0x4C configures which unique Rx port registers can be accessed by I2C read and write commands.
|7:0||FREQ_CNT_LOW||R||0x0||Frequency Counter Low Byte (1/256 MHz)
The Frequency counter reports the measured frequency for the FPD3 Receiver. This portion of the field is the fractional value in 1/256 MHz.