I'm using SPORT with external clk and fs. In the ADSP-2137x Processor Reference Manual Rev. 2.2 in chapter "Slave Mode" (page 7-10) it says:
"Note for slave transmit mode the maximum SPORT frequency is limited to PCLK/8."
In the datasheet (ADSP-21371, Rev.D), the clock period for external clocking in transmit mode is given as (minimum):
(tPCLK × 4)
which is equivalent to PCLK/4.
My questions are:
1) What is actually the maximum clock frequency for SPORT transmit with external clock and frame sync?
2) I'm not sure what the definition of "slave mode" is, I assume that it means external clock?