公开(公告)号：FR2410399A1

公开(公告)日：1979-06-22

申请号：FR7830978

申请日：1978-10-24

Applicant: IBM

Inventor： NAGEL DENNIS N ,  O'NEAL DOUGLAS M ,  PETROSKEY PAUL W ,  BERG JAN W VANDEN ,  WILDES DONALD V ,  WU DAVID C K

IPC: G06F13/12 ,  G06F13/40 ,  H04J6/00 ,  H04L11/20

Abstract: The programmable communications multiplexer is capable of executing for each of a number of communications line ports a sequence of individualised functions for the ports from a sequence of generalised functions common to the ports. A control store stores in each of a number of locations logic selection address information and other control information and data for each port. Logic units execute the sequence of general functions and a scan table has a number of locations storing the addresses of the ports and the corresp. control store locations. A device includes a source of timing pulses and an address register for periodically reading out all of the addresses in the scan table in a selected sequence to periodically access the ports and the control store locations.

公开(公告)号：FR2410399B1

公开(公告)日：1986-08-08

申请号：FR7830978

申请日：1978-10-24

Applicant: IBM

Inventor： NAGEL DENNIS N ,  O'NEAL DOUGLAS M ,  PETROSKEY PAUL W ,  BERG JAN W VANDEN ,  WILDES DONALD V ,  WU DAVID C K

IPC: G06F13/12 ,  G06F13/40 ,  H04J6/00 ,  H04L11/20