JPS5498142A - Communication control system - Google Patents

Communication control system

Info

Publication number
JPS5498142A
JPS5498142A JP430978A JP430978A JPS5498142A JP S5498142 A JPS5498142 A JP S5498142A JP 430978 A JP430978 A JP 430978A JP 430978 A JP430978 A JP 430978A JP S5498142 A JPS5498142 A JP S5498142A
Authority
JP
Japan
Prior art keywords
firmware
transmission
communication control
ram
control module
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.)
Pending
Application number
JP430978A
Other languages
Japanese (ja)
Inventor
Ryozo Maeno
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP430978A priority Critical patent/JPS5498142A/en
Publication of JPS5498142A publication Critical patent/JPS5498142A/en
Pending legal-status Critical Current

Links

Landscapes

  • Information Transfer Between Computers (AREA)
  • Computer And Data Communications (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE: To make it possible to control various transmission control procedures in one communication control module.
CONSTITUTION: In an initial state, processor 13 is controlled by firmware of ROM 14, and interprets commands of a central processing unit (arithmethic control unit and main memory), and reads and stores firmware data from the main memory into RAM 15. After that, the communication control module is mainly controlled by firmware of RAM 15. Firmware in RAM 15 can set the synchronous system of receiving/transmission by controlling URTLSI 17 as well as controls the transmission procedures. Further, the transmission clock can be generated in URTLSI, and also, the transmission speed can be freely set by firmware, so that it is possible to cope with various communication systems by using one communication control module.
COPYRIGHT: (C)1979,JPO&Japio
JP430978A 1978-01-20 1978-01-20 Communication control system Pending JPS5498142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP430978A JPS5498142A (en) 1978-01-20 1978-01-20 Communication control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP430978A JPS5498142A (en) 1978-01-20 1978-01-20 Communication control system

Publications (1)

Publication Number Publication Date
JPS5498142A true JPS5498142A (en) 1979-08-02

Family

ID=11580879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP430978A Pending JPS5498142A (en) 1978-01-20 1978-01-20 Communication control system

Country Status (1)

Country Link
JP (1) JPS5498142A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152038A (en) * 1980-04-25 1981-11-25 Fujitsu Ltd Data transfer processor
JPS5962243A (en) * 1982-10-01 1984-04-09 Canon Inc Network system
JPS59123917A (en) * 1982-12-29 1984-07-17 Fujitsu Ltd Communication control system
JPS61239753A (en) * 1985-04-16 1986-10-25 Japan Radio Co Ltd Switching method for synchronous/asynchronous communication
JPS6211345A (en) * 1985-07-09 1987-01-20 Matsushita Electric Ind Co Ltd Synchronous/asynchronous switching device
JPH05130165A (en) * 1991-08-15 1993-05-25 Nippon Motoroola Kk Communication interface equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56152038A (en) * 1980-04-25 1981-11-25 Fujitsu Ltd Data transfer processor
JPS622346B2 (en) * 1980-04-25 1987-01-19 Fujitsu Kk
JPS5962243A (en) * 1982-10-01 1984-04-09 Canon Inc Network system
JPS59123917A (en) * 1982-12-29 1984-07-17 Fujitsu Ltd Communication control system
JPS61239753A (en) * 1985-04-16 1986-10-25 Japan Radio Co Ltd Switching method for synchronous/asynchronous communication
JPS6211345A (en) * 1985-07-09 1987-01-20 Matsushita Electric Ind Co Ltd Synchronous/asynchronous switching device
JPH0453341B2 (en) * 1985-07-09 1992-08-26 Matsushita Electric Ind Co Ltd
JPH05130165A (en) * 1991-08-15 1993-05-25 Nippon Motoroola Kk Communication interface equipment

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