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K8X SPI max speed (slave)

Question asked by felipeyamamoto on Nov 14, 2017
Latest reply on Nov 15, 2017 by Jing Pan



SPI peripheral is clocked by bus clock (60 MHz), and is limited to bus clock/2 (30 MHz), according to the reference manual. However, the datasheet states that, when operating in slave mode, there is a limitation of 15 MHz to the module frequency. Why is that? Is this really the maximum speed that I can get from the SPI as slave? I need a transfer rate of ~30Mbps as a slave. Is there any serial interface available in the MCU that I can achieve this (using FlexIO, for example)?


Thanks in advance,