GPIO

how much current can the gpio ports source/sink? the specific source/sink information for each hardware model listed under it's gpio section of the hardware interface docs pages for example, see this gpio section https //docs brightsign biz/hardware/xc5 hardware interfaces#gpio for the xc2055/4055 player models what is the digital signal rise time? 10 nanoseconds is the rise time for our digital signals (rise is the time it takes to go from 10% to 90% of the final voltage level) can the gpio ports do analog signals? no, the players are digital input and output only is there hardware support for communication protocols? the gpio lines do not support communication protocols certain models might possibly be remapped/reconfigured similar to gpio serial, but it's not a supported function