JPS57168553A - Multiplexing control system - Google Patents
Multiplexing control systemInfo
- Publication number
- JPS57168553A JPS57168553A JP56053593A JP5359381A JPS57168553A JP S57168553 A JPS57168553 A JP S57168553A JP 56053593 A JP56053593 A JP 56053593A JP 5359381 A JP5359381 A JP 5359381A JP S57168553 A JPS57168553 A JP S57168553A
- Authority
- JP
- Japan
- Prior art keywords
- transmitting
- contents
- priority
- transmission line
- station
- 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
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
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
- G06F13/368—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
- G06F13/372—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a time-dependent priority, e.g. individually loaded time counters or time slot
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Communication Control (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To realize an effective application of a transmission line, by transmitting the contents of a memory for acquisition of the using right of the transmission line to be received at each station for comparison of the priority and then transmitting the contents of the memory to the transmission line when the coincidence is obtained through the comparison of the priority to decide the transmitting priority of the transmission line. CONSTITUTION:A certain branch-connected station transmits the contents of a memory 13 to a transmission line from a transmitting part 10 in order to examine the use of the line 1. A signal receiver 2 of each station discriminates a go-ahead code on the line 1 and delivers it, and a counter 4 counts the clocks given from a signal receiver. The count contents are compared 5 with the contents of a priority part 6. If the coincidence is obtained, the signal showing a transmitting request is delivered from a signal transmitter 10 via an AND circuit 8. This data retains the transmitting requests of other stations having lower priorities. Thus if it is decided that the station that delivered the go-ahead code, etc. has the highest priority among the stations desiring the transmission, the data in a transmitting buffer 11 is transmitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56053593A JPS57168553A (en) | 1981-04-09 | 1981-04-09 | Multiplexing control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56053593A JPS57168553A (en) | 1981-04-09 | 1981-04-09 | Multiplexing control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57168553A true JPS57168553A (en) | 1982-10-16 |
Family
ID=12947169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56053593A Pending JPS57168553A (en) | 1981-04-09 | 1981-04-09 | Multiplexing control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57168553A (en) |
-
1981
- 1981-04-09 JP JP56053593A patent/JPS57168553A/en active Pending
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