I need to detect a falling edge on a GPIO input, then change the same GPIO into an output and drive it high. This needs to happen within 0.1ms. How can I ensure a fast reaction time? Most interrupt examples use a queue, but I am worried that this will introduce too much latency. Is there any problem...

I need to output a stream of 16-bit words fast to an 8080 bus. It's not an option to set single GPIO pins seperately; I want to write 16 bits in one operation if possible. How do I do that? I read about the register GPIO_OUT_REG, which supposedly corresponds to GPIO 0..31. How do I write 16-bits usi...