JPS5566015A - Shared line state detection system - Google Patents
Shared line state detection systemInfo
- Publication number
- JPS5566015A JPS5566015A JP13954578A JP13954578A JPS5566015A JP S5566015 A JPS5566015 A JP S5566015A JP 13954578 A JP13954578 A JP 13954578A JP 13954578 A JP13954578 A JP 13954578A JP S5566015 A JPS5566015 A JP S5566015A
- Authority
- JP
- Japan
- Prior art keywords
- state
- search
- lines
- search lines
- signal line
- 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
Abstract
PURPOSE: To make it possible to detect the idle state of a shared signal line and increase or reduce freely the number of processing units by a constitution using a search line.
CONSTITUTION: Use state detecting search lines 5 and 6 are used. In case of the state of a common resource, search command T1a is transmitted from a processing part to input the state of detecting search lines into resister 8. That is, when search lines 5 as well as 6 are "H", the output of NAND gate 9 becomes "L", and output Q' of register 8 becomes "H", and the output of register 8 controls search lines 5 and 6 through inverter 10 and NAND gate 11 so that these lines may be "L" respectively. Consequently, under this state, other state detection control parts 7x of shared signal line 2 can hold the use of signal line 2 because it is detected that search lines 5 and 6 are in Busy state. In case that detection of idle states of search lines 5 and 6 for plural processing units is probalbe, state input command T2a is transmitted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13954578A JPS5566015A (en) | 1978-11-13 | 1978-11-13 | Shared line state detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13954578A JPS5566015A (en) | 1978-11-13 | 1978-11-13 | Shared line state detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566015A true JPS5566015A (en) | 1980-05-19 |
Family
ID=15247753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13954578A Pending JPS5566015A (en) | 1978-11-13 | 1978-11-13 | Shared line state detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566015A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007283375A (en) * | 2006-04-19 | 2007-11-01 | Nippon Spindle Mfg Co Ltd | Method of squeezing work, and apparatus therefor |
JP2008012549A (en) * | 2006-07-04 | 2008-01-24 | Nissan Motor Co Ltd | Apparatus and method of working fine shape, and sliding member |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5099235A (en) * | 1973-12-28 | 1975-08-06 | ||
JPS51113524A (en) * | 1975-03-31 | 1976-10-06 | Advantest Corp | Data transfer controlling system |
-
1978
- 1978-11-13 JP JP13954578A patent/JPS5566015A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5099235A (en) * | 1973-12-28 | 1975-08-06 | ||
JPS51113524A (en) * | 1975-03-31 | 1976-10-06 | Advantest Corp | Data transfer controlling system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007283375A (en) * | 2006-04-19 | 2007-11-01 | Nippon Spindle Mfg Co Ltd | Method of squeezing work, and apparatus therefor |
JP2008012549A (en) * | 2006-07-04 | 2008-01-24 | Nissan Motor Co Ltd | Apparatus and method of working fine shape, and sliding member |
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