i.MX ProcessorsのトピックGPIO max read frequency

GPIO max read frequency

Eximius — Wed, 29 Sep 2021 14:55:17 GMT

Hi,

We are working with a 13 bit or 9 bit parallel camera interface with clocks at 48Mhz or 24Mhz. And I would like to know what is the GPIOs max reading frequency, or if there is another interface that the camera could be directly connected to, without the needs of extra hardware.

Platform: i.MX 8M Plus

Thanks for your help.

Best regards,

Re: GPIO max read frequency

nxf63675 — Wed, 29 Sep 2021 18:01:52 GMT

Hi Eximius,

The max speed on GPIO can be found on the datasheet 3.5.1 General purpose I/O AC parameters:

And the processor has interfaces focus on a single Camera, MIPI CSI 1 can support up to 400/500 MHz pixel clock in the
Nominal/Overdrive mode.

Regards,

Israel.