North bridge device, bus interconnection network and data transmission method
A data transmission method and bus interconnection technology, applied in the direction of bus network, digital transmission system, transmission system, etc., can solve the problems of increasing the design difficulty of bus interconnection network, unable to meet IO bandwidth requirements, etc., to achieve bandwidth increase, reduce routing pressure, The effect of improving efficiency
Active Publication Date: 2019-09-06
CHENGDU HAIGUANG INTEGRATED CIRCUIT DESIGN CO LTD
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Problems solved by technology
[0004] 1) The north bridge is connected to the bus interconnection network through an interface, and the frequency and data bit width on this interface become the bottleneck of the bandwidth for data exchange between the north bridge and other devices on the bus, which cannot meet the increasing IO bandwidth requirements;
[0005] 2) The address routing is all completed by the bus interconnection network, so that the connection between the north bridge interface and all other devices on the bus needs to be designed on the bus interconnection network. When the number of devices on the bus gradually increases, the design difficulty of the bus interconnection network will increase
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[0027] Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that during the development of any such actual implementation, many implementation-specific decisions can be made in order to achieve the developer’s specific goals, and these decisions may vary depending on the implementation. .
[0028] Here, it should be noted that in order to avoid obscuring the present disclosure due to unnecessary details, only the device structure closely related to the solution according to the present disclosure is shown in the drawings, and the present disclosure is omitted. Other details that are not relevant.
[0029] It should be understood that the present disclosure is not limited to the described implementation form due to the following description with reference to...
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The invention provides a north bridge device, a bus interconnection network and a data transmission method applied to the north bridge equipment and the bus interconnection network, which can improvethe bandwidth of data exchange between a north bridge and a bus and reduce the routing pressure on the bus interconnection network. The north bridge device is connected with the IO device. At least two bus interfaces are arranged; each bus interface is connected with one bus interface of the bus interconnection network. The north bridge device comprises a routing unit used for receiving an accessrequest sent by an IO device, wherein if it is judged that an address to be accessed by the IO device belongs to an address range corresponding to a first bus interface of a north bridge device according to the access request, the access request is routed to a bus interface connected with the first bus interface through the first bus interface; and a feedback unit which is used for receiving a reply message sent from the bus interface connected with the first bus interface and returned through the first bus interface, and feeding back the reply message to the IO equipment.
Description
Technical field [0001] The present invention relates to the field of computer technology, in particular to a north bridge device, a bus interconnection network, and a data transmission method applied to the north bridge device and the bus interconnection network. Background technique [0002] A simple schematic diagram of the computer hardware structure such as figure 1 As shown, the central position in the figure is the bus interconnection network, each device is connected to the bus interconnection network through the bus protocol interface, and the bus interconnection network routes the information source to the destination according to the pre-configured routing information. The north bridge device is responsible for connecting some high-speed IO devices, such as network cards, GPUs, etc.; the IO interface on the bus provides the chip with a device interface that can be directly connected to the bus, which is used to improve the efficiency of data exchange between the devices ...
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Patent Timeline
Login to View More IPC IPC(8): H04L12/40H04L12/46H04L12/741H04L12/751H04L45/02H04L45/74
CPCH04L12/40H04L45/74H04L12/462H04L45/10
Inventor王海洋姜莹
OwnerCHENGDU HAIGUANG INTEGRATED CIRCUIT DESIGN CO LTD