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GC30-3004-4
FileNo. S360/S370-09




IBM 3704 and 3705
Communications Controllers
Systems Principles of Operation
Preface
This r~ference publication contains the hardware oper- Chapter 2: System Structure
ationand programming requirements of the IBM 3704 Describes the registers, interrupt scheme, and levels
and the IBM 3705 Communications Controllers. The of the control program~
information applies to the Il3M 3704, IBM 3705