JPS5498143A - Communication control system - Google Patents

Communication control system

Info

Publication number
JPS5498143A
JPS5498143A JP431078A JP431078A JPS5498143A JP S5498143 A JPS5498143 A JP S5498143A JP 431078 A JP431078 A JP 431078A JP 431078 A JP431078 A JP 431078A JP S5498143 A JPS5498143 A JP S5498143A
Authority
JP
Japan
Prior art keywords
control
firmware
ram
transmission
communication control
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
JP431078A
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 JP431078A priority Critical patent/JPS5498143A/en
Publication of JPS5498143A publication Critical patent/JPS5498143A/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 communication control procedures in one communication control module.
CONSTITUTION: The command from the central processing unit (arithmetic control unit and main memory) having specific command data is detected by firmware in ROM 14, and firmware data is read out from the main memory and stored in RAM 15. After the transmission is completed, the central processing unit is informed; and when ordinary commands are received, control is branched to firmware in RAM 15. After that, control is under firmware in RAM 15. Firmware in RAM 15 sets the synchronous system of receiving/transmission by controlling URTLSI 17 besides transmission procedures control, and can generate various transfer clocks by controlling PTLSI, so that it is possible to cope with various communication systems in common hardware.
COPYRIGHT: (C)1979,JPO&Japio
JP431078A 1978-01-20 1978-01-20 Communication control system Pending JPS5498143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP431078A JPS5498143A (en) 1978-01-20 1978-01-20 Communication control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP431078A JPS5498143A (en) 1978-01-20 1978-01-20 Communication control system

Publications (1)

Publication Number Publication Date
JPS5498143A true JPS5498143A (en) 1979-08-02

Family

ID=11580904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP431078A Pending JPS5498143A (en) 1978-01-20 1978-01-20 Communication control system

Country Status (1)

Country Link
JP (1) JPS5498143A (en)

Cited By (4)

* 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
JPS5831439A (en) * 1981-08-19 1983-02-24 Fujitsu Ltd Updating system for firmware
JPS59501762A (en) * 1982-09-30 1984-10-18 ウエスタ−ン　エレクトリツク　カムパニ−，インコ−ポレ−テツド Direct memory access interface device
JPS6378255A (en) * 1986-09-20 1988-04-08 Alps Electric Co Ltd Execution system for program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109635A (en) * 1974-02-04 1975-08-28
JPS5157262A (en) * 1974-11-15 1976-05-19 Nippon Electric Co

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109635A (en) * 1974-02-04 1975-08-28
JPS5157262A (en) * 1974-11-15 1976-05-19 Nippon Electric Co

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
JPS622346B2 (en) * 1980-04-25 1987-01-19 Fujitsu Kk
JPS5831439A (en) * 1981-08-19 1983-02-24 Fujitsu Ltd Updating system for firmware
JPS59501762A (en) * 1982-09-30 1984-10-18 ウエスタ−ン　エレクトリツク　カムパニ−，インコ−ポレ−テツド Direct memory access interface device
JPH0420497B2 (en) * 1982-09-30 1992-04-03 Ei Teii Ando Teii Tekunorojiizu Inc
JPS6378255A (en) * 1986-09-20 1988-04-08 Alps Electric Co Ltd Execution system for program

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