Interface CFAF320240F-T-TS with ssd2119


New member
Hello everyone, I am french and I live in Toulouse.

Now I am working with a screen provided by CrystalFontz : CFAF320240F-T-TS which has a graphic controller ssd2119. I would like to know which interface is the faster with this graphic controller : SPI or 18 bit parallel? Is there a way to know it before trying each one?

Thank you very much
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CF Support2

The SPI interface is a clocked interface. Each command or data bit is essentially clocked. With the 18 bit parallel interface you are able to pass 18 bits of command or data at a time. Using the same micro-controller at the same clock speed, the parallel interface will always be faster.