公开(公告)号：BE762664A

公开(公告)日：1971-07-16

申请号：BE762664

申请日：1971-02-08

Applicant: IBM

Inventor： ARULPRAGASAM J A ,  MINSHULL J F ,  MURPHY A S

IPC: G06F13/12 ,  G11C15/04 ,  G06F

Abstract: A multiplex input/output (I/O) channel in which channel functions are carried out by associative stores. Three associative stores are used, a control store, an address store and a data store. The data store acts as a data buffer store and also handles most of the interchange of control signals between the channel and the I/O control units. Tag-in I/O signals are used directly as keys in table look-up on interface response tables and initiate the appropriate response from the channel. The address store assemblies the main store address and is also responsible for some of the tag-out I/O signals. Subchannels are allotted only when they are needed. There are a limited number of subchannel areas and these are marked when they are allotted to control units. An extra marker identifies the subchannel currently in use. Any control unit can be allotted to any subchannel.

公开(公告)号：BE748547A

公开(公告)日：1970-09-16

申请号：BE748547D

申请日：1970-04-06

Applicant: IBM

Inventor： ARULPRAGASAM J A ,  LLEWELYN R J ,  MINSHULL J F ,  PERRY L

IPC: G11C15/00 ,  G11C15/04 ,  G11C

公开(公告)号：NO136482B

公开(公告)日：1977-05-31

申请号：NO428570

申请日：1970-11-10

Applicant: IBM

Inventor： ARULPRAGASAM J A

IPC: H04L12/423 ,  H04L5/00

公开(公告)号：SE411802B

公开(公告)日：1980-02-04

申请号：SE1517670

申请日：1970-11-10

Applicant: IBM

Inventor： ARULPRAGASAM J A

IPC: H04L12/423 ,  G06F15/16 ,  G06F9/00 ,  H04L11/15