What is the Max baudrate limitations for the MibSPI interface in slave mode with a VCLK of 96 MHz???
When looking in the Technical Reference Manual, it is stated that: "If the SPI is configured as slave, PRESCALEx does not need to be configured".
But in the datasheet under slave mode timing it is stated that:
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When the SPI is in Slave mode, the following must be true:
For PS values from 1 to 255: tc(SPC)S ≥ (PS +1)tc(VCLK) ≥ 40ns, where PS is the prescale value set in the SPIFMTx.[15:8] register bits.
For PS values of 0: tc(SPC)S = 2tc(VCLK) ≥ 40ns
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So the prescale value has some saying in slave mode after all ????
If 20MHz SPI CLK is needed in slave mode, with a VCLK of 96 MHZ, the constraints above would indicate that prescale cannot be 0, but should be 4 ??
Anyway, I am having no luck getting it to work unless I reduce the baudrate to 10MHz. Is there some other limitations here ?
