buenos
Joined: 24 Oct 2005
Posts: 513
Helped: 14
Location: Hungary -> Belgium -> UK
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 01 Jul 2008 21:38 non-transparent pci bridge |
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normally there are non-transparent pci bridges in multi-host systems, like compact-pci... In compact pci, one board is the system host, other processor boards can be only intelligent subsystems. and there are peripheral boards too on the bus.
the non-host cpu cards use non-transparent pci bridge to connect to the backplane cpci bus. the host cpu card uses a transparent pci bridge, the peripherals normally dont need any (they are transparent target boards).
| Code: |
CPU_card(host) CPU_card CPU_card peripheral_card
I I I I
-----------------------------------------------------------compact-pci bus
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is it possible to read and write the memory of a peripheral on the bus, from an intelligent sibsystem cpu card, without the host handling the communication?
so, can a not-host cpu card access directly to a peripheral or to another cpu board directly?
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