Can a 16MHz signal input to the gpio pin of nRF52832?

[chenlmm]

My system's data rate is 16MHz.it input to nRF52832 is parallel 8 bits. Is it possible? I want input the data to RAM by easyDMA,please to tell me how to do it ? thanks!

[endnode]

What do you mean by "GPIO with EasyDMA"? As far as I understand there is nothing like that. GPIO can either be

• read/written if you configure it as input/output
• or it can generate some interrupts if you configure it as GPIOTE
• or you can configure it as analogue input
• or you can use it to launch some other task through PPI mechanism
• or you can link it with some other HW peripheral block which performs serial or similar communication standard (UART/TWI/I2C/SPI/QSPI/USB/NFC/I2S/PDM/PWM/...). Many restrictions apply here (e.g. not app GPIO PINs can serve as all these interfaces) but then these special peripherals have EasyDMA option to transfer data in memory according to configuration in registers without need to use core processor.