FASTBUS I/O Instruction Format:

• Primary Address
• Secondary Address
• Read Random
• Read Secondary Address
• Read Block
• Read Block with a Word Count as a guard.
• Read Block with a Word Count.
• Write Random
• Write Random Indirect
• Write Block with a Word Count
• Write Block with a Word Count, Non-Handshake
• Secondary Address, Read Random
• Secondary Address, Read Block.
• Secondary Address, Read Block with a word count guard.
• Secondary Address, Read Block with a word count.
• Secondary Address, Write Random.
• Secondary Address, Write Block with a word count.
• Secondary Address, Write Random indirect.
• Primary, Secondary Address, Read Random.
• Primary, Secondary Address, Read Block
• Primary, Secondary Address, Read Block with a word count guard.
• Primary, Secondary Address, Read Block with a word count.
• Primary, Secondary Address, Write Random.
• Primary, Secondary Address, Write Block.