ESP32S3 SPI2 and SPI3

[mikecarlos]

Hi,

I am desinging a PCB with ESP32-S3FH4R2 which uses Quad SPIs (SPI0/SPI1) for in-package memory.

I would like to route SPI2 and SPI3 to other devices on the board and would like to utilize the maximum available performance.

Therefore for SPI2 I have chosen the IOMUX and routed the pins as follows:

image_2024-05-05_145039353.png (50.8 KiB) Viewed 644 times

For SPI3 GPIO_MUX is the only available option Should I prefer the FSPI capable pins to get maximum speed?? and use pins 33 - 38

image_2024-05-05_145514625.png (36.01 KiB) Viewed 644 times

Or is it OK to use any GPIO to achieve the same performance on SPI3?

Regards