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Network Working Group                                       M. Wingfield
Request for Comments: 12 REVISE                           26 August 1969
                         ------

                    IMP-HOST INTERFACE FLOW DIAGRAMS

The following flow diagrams were extracted from the logic diagrams pro-
vided in Appendix B of BBN Report No. 1822.  These diagrams indicate
the logical sequence of hardware operations which occur within the
IMP-HOST interface.  The logic names appearing in the blocks correspond
to the logic elements found in Appendix B.
















































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                          IMP to HOST message
                          -------------------

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                          HOST TO IMP MESSAGE
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