JPS55131844A - Communication controller - Google Patents

Communication controller

Info

Publication number
JPS55131844A
JPS55131844A JP3822979A JP3822979A JPS55131844A JP S55131844 A JPS55131844 A JP S55131844A JP 3822979 A JP3822979 A JP 3822979A JP 3822979 A JP3822979 A JP 3822979A JP S55131844 A JPS55131844 A JP S55131844A
Authority
JP
Japan
Prior art keywords
information
unit
control
cpu
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3822979A
Other languages
Japanese (ja)
Other versions
JPS6327737B2 (en
Inventor
Kunio Fukuhara
Yoshihiro Yoshioka
Takuji Hosoe
Hiroyuki Sugano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP3822979A priority Critical patent/JPS55131844A/en
Publication of JPS55131844A publication Critical patent/JPS55131844A/en
Publication of JPS6327737B2 publication Critical patent/JPS6327737B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Computer And Data Communications (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE: To lighten loads on CPU and a data channel unit by separating a control information part from a user data part and then by independently transferring those information part and data part between CPU and a communication controller via different paths.
CONSTITUTION: Circuit control part 13 of communication controller 10 is equipped with communication circuits 5 and to central processing system unit 9, buffer register 14 and direct memory access control part 15 controlling direct access to the main memory unit of unit 9 via a data channel unit are connected. Then, transmitted-received information 6 is separated into control information part CD and user data part UD and transmitted-received information 7 consists only of control information part CD; and both pieces of information 6 and 7 are received by control part 13 by way of circuit 5, stored in memory part 12 via bus 16, and separated by main control part 11 into information part CD and data part UD, which are supplied to unit 9 through register 14 and control part 15 respectively, thereby reducing loads on CPU and the data channel unit.
COPYRIGHT: (C)1980,JPO&Japio
JP3822979A 1979-03-30 1979-03-30 Communication controller Granted JPS55131844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3822979A JPS55131844A (en) 1979-03-30 1979-03-30 Communication controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3822979A JPS55131844A (en) 1979-03-30 1979-03-30 Communication controller

Publications (2)

Publication Number Publication Date
JPS55131844A true JPS55131844A (en) 1980-10-14
JPS6327737B2 JPS6327737B2 (en) 1988-06-06

Family

ID=12519469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3822979A Granted JPS55131844A (en) 1979-03-30 1979-03-30 Communication controller

Country Status (1)

Country Link
JP (1) JPS55131844A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173550A (en) * 1986-01-27 1987-07-30 Fujitsu Ltd Transfer system for direct memory access information
JPH01103757A (en) * 1987-10-16 1989-04-20 Fujitsu Ten Ltd Device for transferring data
JPH02133849A (en) * 1988-11-15 1990-05-23 Pfu Ltd Transfer process system for received data

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173550A (en) * 1986-01-27 1987-07-30 Fujitsu Ltd Transfer system for direct memory access information
JPH01103757A (en) * 1987-10-16 1989-04-20 Fujitsu Ten Ltd Device for transferring data
JPH02133849A (en) * 1988-11-15 1990-05-23 Pfu Ltd Transfer process system for received data

Also Published As

Publication number Publication date
JPS6327737B2 (en) 1988-06-06

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