IT1137940B - Allocation controller for multi-processor switching system - Google Patents
Allocation controller for multi-processor switching systemInfo
- Publication number
- IT1137940B IT1137940B IT22592/81A IT2259281A IT1137940B IT 1137940 B IT1137940 B IT 1137940B IT 22592/81 A IT22592/81 A IT 22592/81A IT 2259281 A IT2259281 A IT 2259281A IT 1137940 B IT1137940 B IT 1137940B
- Authority
- IT
- Italy
- Prior art keywords
- units
- central
- pairs
- resources
- level arbitration
- Prior art date
Links
Landscapes
- Multi Processors (AREA)
- Bus Control (AREA)
Abstract
The controller provides storing with equal priority between pairs of resources, by using central processing units which form part of several pairs. The controller has a number of central units, constituting three separate groups. At least three resources are provided to be connected to the individual central processors. First level arbitration units are used to form three double groups, each of which are linked to a respective central processor and a partic. resource pair to select a central pressure in response to a command signal. The arbitration units are connected to one of a pair of resources by pairs of bus lines. Second level arbitration units select one of the central units selected by the first level arbitration units, and function on a rotor basis to allocate access of resource pairs to the requesting central processing unit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/163,048 US4395753A (en) | 1980-06-26 | 1980-06-26 | Allocation controller providing for access of multiple common resources by a plurality of central processing units |
US06/163,047 US4394728A (en) | 1980-06-26 | 1980-06-26 | Allocation controller providing for access of multiple common resources by a duplex plurality of central processing units |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8122592A0 IT8122592A0 (en) | 1981-06-26 |
IT1137940B true IT1137940B (en) | 1986-09-10 |
Family
ID=26859300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22592/81A IT1137940B (en) | 1980-06-26 | 1981-06-26 | Allocation controller for multi-processor switching system |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1137940B (en) |
-
1981
- 1981-06-26 IT IT22592/81A patent/IT1137940B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8122592A0 (en) | 1981-06-26 |
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