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Credit processing equipment and flow control transmission apparatus and method thereof

A processing device and flow control technology, applied in transmission systems, digital transmission systems, sustainable buildings, etc., can solve problems such as large computing circuit area and large delay in credit processing calculations

Active Publication Date: 2011-10-05
SEMICON MFG INT (SHANGHAI) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The problem that the present invention also solves is that in the prior art, the calculation delay of credit processing is too large, and the calculation circuit area is too large

Method used

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  • Credit processing equipment and flow control transmission apparatus and method thereof
  • Credit processing equipment and flow control transmission apparatus and method thereof
  • Credit processing equipment and flow control transmission apparatus and method thereof

Examples

Experimental program
Comparison scheme
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no. 5 example

[0158] Figure 7 Given the fifth embodiment of a flow control sending device of the present invention, refer to the following Figure 7 To illustrate, the flow control sending device 71 includes:

[0159] The header buffer unit 302 is used to receive, store and send the header of the transaction packet transmitted from the data connection layer, wherein the header includes header content and header control information, and the header content is finally sent to the data connection when the flow control judges that the sending condition is met Layer, the packet header control information includes the format, type and length of the data carried by the transaction packet, and the packet header buffer unit 302 also includes a read-write pointer allocation unit. Whenever a packet header is transmitted, the read-write pointer allocation unit allocates A pair of write and read pointers.

[0160] The packet header credit calculation unit 304 is configured to perform packet header cre...

no. 7 example

[0191] refer to Figure 8 Given the seventh embodiment of a stream control receiving device of the present invention, refer to the following Figure 8 To illustrate, the flow control receiving device 81 includes:

[0192] The header buffer unit 302 is used to receive, store and send the header of the transaction packet transmitted from the data connection layer, wherein the header includes header content and header control information, and the header content is finally sent to the data connection when the flow control judges that the sending condition is met Layer, the packet header control information includes the format, type and length of the data carried by the transaction packet, and the packet header buffer unit 302 also includes a read-write pointer allocation unit. Whenever a packet header is transmitted, the read-write pointer allocation unit allocates A pair of write and read pointers.

[0193] The packet header credit calculation unit 304 is configured to perform ...

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Abstract

The invention discloses a stream packet header credit processing device, comprising a packet header buffer unit and a packet header credit calculation unit, which is characterized in that: the packet header credit is calculated directly according to the amount of the packet header credit received, recorded and transmitted by a writing pointer and a reading pointer, so that delay-time is reduced; meanwhile, a credit processing device is provided in the invention and the credit processing device comprises the packet header credit processing device and a data credit calculation unit; wherein, inthe data calculation circuit a ring counter control unit and a controlling table unit are used to choose different types of data; the data credit is calculated via the shared circuit, so that circuitarea is saved and calculation speed is raised; the invention also provides a sending device, a receiving device, a transmission system and a processing and transmitting method using the receiving andsending devices and transmission system, so that credit processing is optimized; efficiency is increased and power consumption is reduced with the stream control device and stream control method in the invention.

Description

technical field [0001] The present invention relates to a credit processing device and a stream control transmission device such as a computer and a communication device, and a method for executing the credit processing device and the stream control transmission device. Background technique [0002] PCI Express (Peripheral Component Interconnect) is an interconnection technology between chips and a board expansion interface technology. Its predecessor is the very famous 3GIO (3rd Generation Input / Output, third Generation I / O), the research and development code is Arapahoe, which is jointly established by the Arapahoe Work Group jointly established by Intel, Dell, Compaq, IBM, Microsoft, etc. PCI SIG (PCI Special Interest Group: PCI Special Interest Group, a non-profit organization) Drafted and recommended as the next-generation standard to replace the PCI bus standard. [0003] Compared with the shared parallel architecture of traditional PCI and earlier computer buses, PCI...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/861
CPCY02B60/31Y02D30/50
Inventor 唐世庆李石
Owner SEMICON MFG INT (SHANGHAI) CORP
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