• General
• FCT 1 or 2: Read n bits
• FCT 3 or 4: Read n words
• FCT 3 or 4: Read n double words
• FCT 5: Write 1 bit
• FCT 6: Write 1 word
• FCT 15: Write n bits
• FCT 16: Write n words
• FCT 16: Write n double words
• FCT 22: Mask write register
• FCT 23: Read/Write n words
• Exception response by server