Back plate clock system and back plate clock providing method

Abstract

The invention provides a back plate clock system and a back plate clock providing method. The back plate clock system comprises a first clock driving module and a first clock terminating module. The first clock driving module is used for driving clocks in two same channels and supplying the same to a first left-channel clock link and a first right-channel clock link, wherein the clocks in the two same channels refer to first clocks. The first clock terminating module is used for terminating and detecting the first left-channel clock link passing through clock processing modules of left-half function boards and the first right-channel clock link passing through clock processing modules of right-half function boards. By the aid of the technical scheme, the problems that capacity and expansion capability of an ATCA (advanced telecom computing architecture) system are limited and the clock performance cannot meet demands in the prior art are solved, so that capacity and expandability of the system are improved, and the clock performance and reliability are improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a backplane clock system and a method for providing the backplane clock. Background technique [0002] PICMG 3.0 is an Advanced Telecom Computing Architecture (ATCA) released by the PCI Industrial Computer Manufacturers Group (PICMG) at the end of 2002. It defines an industry-standard ATCA architecture. [0003] The clock system of PICMG 3.0 defines 6 clocks, which are divided into 3 groups, and each group has 2 clocks of the same frequency as mutual backup. The first group of clocks is 8k, the second group is 19.44M, and the third group is defined by the user. PICMG 3.0 stipulates that each node on the clock bus can drive the clock bus. The structural diagram of the ATCA clock system is shown in figure 1 . [0004] The rear board of each slot in the ATCA system is small, which limits the processing and expansion capabilities of ATCA. The enhanced ATCA system developed on th...

AI Technical Summary

Problems solved by technology

In the case of doubling the number of nodes, it is necessary to ensure that the requirements of the system clock are met, but also to ensure good signal integrity and reliability. The current clock structure defined by the ATCA specification cannot meet the requirements of the enhanced ATCA system.

To address these problems, no effective solutions have been proposed

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