JPS56110367A - Communication controller - Google Patents
Communication controllerInfo
- Publication number
- JPS56110367A JPS56110367A JP1226180A JP1226180A JPS56110367A JP S56110367 A JPS56110367 A JP S56110367A JP 1226180 A JP1226180 A JP 1226180A JP 1226180 A JP1226180 A JP 1226180A JP S56110367 A JPS56110367 A JP S56110367A
- Authority
- JP
- Japan
- Prior art keywords
- priority
- control circuit
- message
- controller
- transmission
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
- G06F13/122—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer And Data Communications (AREA)
- Small-Scale Networks (AREA)
- Communication Control (AREA)
Abstract
PURPOSE:To improve the responsibility to a transmission request of high priority, by providing the priority to the transmission request and giving priority for processing to the request in the order of higher priority. CONSTITUTION:The transmission request message is received from the communication controller CCU3 of the terminal device T2 by the line control circuit 2b. Then a comparison is given at the priority control circuit 3 between the priority PR within the control field of the reception transmitting frame and the priority under transfer. In case the PR of the reception data is higher than that of under transferring, this is informed to the line control circuit 2b from the priority control circuit 3. The circuit 2b transfers the received message to the memory 5 and then informs a reception of message to the common control circuit 4. The circuit 4 of the controller CCU1 reads the received message out of the buffer 5 and then decodes it, and then sends a message to the controller CCU2 of the terminal device T1 to indicate a temporary holding of the transmission of data to perform necessary process. After this, the transmission data is sent to the controller CCU2 which is held up to present.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1226180A JPS56110367A (en) | 1980-02-04 | 1980-02-04 | Communication controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1226180A JPS56110367A (en) | 1980-02-04 | 1980-02-04 | Communication controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56110367A true JPS56110367A (en) | 1981-09-01 |
JPS6147460B2 JPS6147460B2 (en) | 1986-10-20 |
Family
ID=11800423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1226180A Granted JPS56110367A (en) | 1980-02-04 | 1980-02-04 | Communication controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56110367A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6159497A (en) * | 1984-08-31 | 1986-03-26 | ヤマハ株式会社 | Data communication equipment for electronic musical instrument |
JPS63226151A (en) * | 1986-10-15 | 1988-09-20 | Fujitsu Ltd | Multiple packet communication system |
JPS63234343A (en) * | 1986-12-22 | 1988-09-29 | アメリカン テレフォン アンド テレグラフ カムパニー | Communication between station of system of a plurality of processors linked to communication medium and a plurality of stations |
JPH01241660A (en) * | 1988-03-24 | 1989-09-26 | Toshiba Corp | Communication system between processor |
-
1980
- 1980-02-04 JP JP1226180A patent/JPS56110367A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6159497A (en) * | 1984-08-31 | 1986-03-26 | ヤマハ株式会社 | Data communication equipment for electronic musical instrument |
JPH0690616B2 (en) * | 1984-08-31 | 1994-11-14 | ヤマハ株式会社 | Electronic musical instrument data communication device |
JPS63226151A (en) * | 1986-10-15 | 1988-09-20 | Fujitsu Ltd | Multiple packet communication system |
JPS63234343A (en) * | 1986-12-22 | 1988-09-29 | アメリカン テレフォン アンド テレグラフ カムパニー | Communication between station of system of a plurality of processors linked to communication medium and a plurality of stations |
JPH0550021B2 (en) * | 1986-12-22 | 1993-07-27 | American Telephone & Telegraph | |
JPH01241660A (en) * | 1988-03-24 | 1989-09-26 | Toshiba Corp | Communication system between processor |
Also Published As
Publication number | Publication date |
---|---|
JPS6147460B2 (en) | 1986-10-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0392173A3 (en) | Fairness algorithm for full-duplex buffer insertion ring | |
CA2075524A1 (en) | Method of operation of remote data/control apparatus with controlled response timing | |
JPS56110367A (en) | Communication controller | |
JPS6411442A (en) | Control method for electronic mail communication | |
JPS57176861A (en) | Terminal equipment | |
JPS56128048A (en) | Group polling control method | |
JPS5591018A (en) | Communication control system | |
JPS5710833A (en) | Communication controlling system | |
JPS56158570A (en) | Facsimile dispatching broadcast communication system | |
JPS57121348A (en) | Incoming transfer system | |
JPS5652950A (en) | Circuit control method of data highway system | |
JPS5567262A (en) | Telegram transmission system | |
JPS57101488A (en) | Data transfer system | |
JPS57176860A (en) | Poling response system | |
JPS57131141A (en) | Data transmission controlling system | |
JPS58206259A (en) | Multi-address communication system having interruption function | |
JPS5691563A (en) | Polarity inversion control system of communication controller | |
JPS5664549A (en) | Message transmission control system | |
JPS5739646A (en) | Interruption controlling system during communication | |
JPS61274447A (en) | Communication system | |
JPS54159104A (en) | Communication control unit | |
JPS6429041A (en) | Data transmission reception controller | |
JPS56164651A (en) | Transmission control system | |
JPS57184352A (en) | Forming system of communication circuit network | |
JPH03136431A (en) | Data communication method |