JPS6468154A - Data communication equipment - Google Patents

Data communication equipment

Info

Publication number
JPS6468154A
JPS6468154A JP62227120A JP22712087A JPS6468154A JP S6468154 A JPS6468154 A JP S6468154A JP 62227120 A JP62227120 A JP 62227120A JP 22712087 A JP22712087 A JP 22712087A JP S6468154 A JPS6468154 A JP S6468154A
Authority
JP
Japan
Prior art keywords
data
pulse signal
bit
gate pulse
bus
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
JP62227120A
Other languages
Japanese (ja)
Other versions
JPH0581100B2 (en
Inventor
Yuji Komatsu
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62227120A priority Critical patent/JPS6468154A/en
Publication of JPS6468154A publication Critical patent/JPS6468154A/en
Publication of JPH0581100B2 publication Critical patent/JPH0581100B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

PURPOSE:To offer a data communication equipment of the CSMA/CD arbitration system capable of circuit integration by providing a bit sequencer section including a microprogram control means controlling a read address of the microprogram and a read timing from a storage means depending on the instruction from the protocol control station so as to attain accurate operation with simple circuit constitution. CONSTITUTION:A bit sequencer section 20 gives a synchronizing pulse signal, a data output gate pulse signal and a data input gate pulse signal to a bus interface section 30 and a priority code field signal (a) is outputted from a transmitter 32 to a bus 40. On the other hand, a data on the bus 40 inputted from a receiver 31 is extracted by an input/output control logic 34 and a shift register 33 by a data input gate pulse signal (e) to apply bit collation. If dissidence takes place by bit collation, a protocol control section 10 outputs a priority code reception microinstruction to stop the transmission. When the bit collation is coincident, all the stored field data are sent and the next field is provided.
JP62227120A 1987-09-09 1987-09-09 Data communication equipment Granted JPS6468154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227120A JPS6468154A (en) 1987-09-09 1987-09-09 Data communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227120A JPS6468154A (en) 1987-09-09 1987-09-09 Data communication equipment

Publications (2)

Publication Number Publication Date
JPS6468154A true JPS6468154A (en) 1989-03-14
JPH0581100B2 JPH0581100B2 (en) 1993-11-11

Family

ID=16855791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227120A Granted JPS6468154A (en) 1987-09-09 1987-09-09 Data communication equipment

Country Status (1)

Country Link
JP (1) JPS6468154A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6721897B1 (en) 2000-06-06 2004-04-13 Renesas Technology Corp. Bus control circuit effecting timing control using cycle registers for respective cycles holding signal levels corresponding to bus control signals that are output by arrangement of signal level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6721897B1 (en) 2000-06-06 2004-04-13 Renesas Technology Corp. Bus control circuit effecting timing control using cycle registers for respective cycles holding signal levels corresponding to bus control signals that are output by arrangement of signal level

Also Published As

Publication number Publication date
JPH0581100B2 (en) 1993-11-11

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term