JPS649560A - Input and output control circuit - Google Patents
Input and output control circuitInfo
- Publication number
- JPS649560A JPS649560A JP16593487A JP16593487A JPS649560A JP S649560 A JPS649560 A JP S649560A JP 16593487 A JP16593487 A JP 16593487A JP 16593487 A JP16593487 A JP 16593487A JP S649560 A JPS649560 A JP S649560A
- Authority
- JP
- Japan
- Prior art keywords
- data
- data signal
- control circuit
- input
- output 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
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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4208—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
- G06F13/4217—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus with synchronous protocol
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Transfer Systems (AREA)
Abstract
PURPOSE:To attain high speed data transfer without being affected by the length of a cable by sampling an effective data from each data signal and adjusting mismatching of a propagation time of a parallel data signals by a buffer. CONSTITUTION:Reception means 4-1-4-n of an input/output control circuit 1 sample an effective data from a data signal on each data signal line and stores in a data buffer 7. The data signal is a signal having information in the pulse width and samples the data by detecting a leading on data signal line. The serial data number sampled on each data signal line is counted synchronously with the synchronizing clock of an input/output control circuit and the result of count is inputted to a parallel data count means 6 counting the parallel data of the data signal of plural bits synchronously with the synchronizing clock of the input/output control circuit 1 and in detecting the arrival of the lowest data signal, the means 6 synchronizes it as the parallel data and sends the result to a host device from a data buffer 7. Thus, high speed data transmission is attained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16593487A JPS649560A (en) | 1987-07-01 | 1987-07-01 | Input and output control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16593487A JPS649560A (en) | 1987-07-01 | 1987-07-01 | Input and output control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS649560A true JPS649560A (en) | 1989-01-12 |
Family
ID=15821792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16593487A Pending JPS649560A (en) | 1987-07-01 | 1987-07-01 | Input and output control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS649560A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100240248B1 (en) * | 1997-02-14 | 2000-01-15 | 윤종용 | Data transmit/receive apparatus and data transmit/receive method |
WO2011136298A1 (en) | 2010-04-28 | 2011-11-03 | 芦森工業株式会社 | Method of manufacturing cushion for front passenger seat air bag device |
-
1987
- 1987-07-01 JP JP16593487A patent/JPS649560A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100240248B1 (en) * | 1997-02-14 | 2000-01-15 | 윤종용 | Data transmit/receive apparatus and data transmit/receive method |
WO2011136298A1 (en) | 2010-04-28 | 2011-11-03 | 芦森工業株式会社 | Method of manufacturing cushion for front passenger seat air bag device |
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