"Using SPIRIT1 to transmit packets. I need an empty command (like NOP). Will it be generated automatically, or do I need to add it manually? I didn't find any relevant explanation in Datasheet. Also, can FEC be manually disabled?"

"Using SPIRIT1 to transmit packets. I need an empty command (like NOP). Will it be generated automatically, or do I need to add it manually? I didn't find any relevant explanation in Datasheet. Also, can FEC be manually disabled?"