Is there a recommended minimum SPI frequency to support the W6100 on a 100Mbit network?
I’d like to use MACRAW but it seems even if the Host MCU ran the SPI clock at 70Mhz (max) we will never keep up with 100Mb/s. Though it certainly depends on how busy the network is…
Is it ok to run the SPI bus at say 2 - 5 MHz and rely on the TCP windowing to slow down the remote device? If the Rx buffer remains full for a time does that mean no ARP or ICMP messages can be responded to?