5700 - Crosslink: Why do I get 24 MHz even if I set the MCLK frequency of 48MHz in the MCLK frequency of Crosslink?
Crosslink: This is a known issue due to a hardware problem. The clock frequency is set to 48 MHz, but the clock divider always needs to be set to divide by 2, which means the actual frequency clock is only 24 MHz.
The reason is due to design constraints. The original plan was to run the clock at 48 MHz, but the default read clock from power up is too fast, so the plan to slow down the clock had been its next step.