CN101945028A

CN101945028A - Multimedia over coax alliance (MOCA) terminal for optical fiber and coaxial cable combined network

Info

Publication number: CN101945028A
Application number: CN 201010287239
Authority: CN
Inventors: 金至琛
Original assignee: GCI Science and Technology Co Ltd
Current assignee: GCI Science and Technology Co Ltd
Priority date: 2010-09-20
Filing date: 2010-09-20
Publication date: 2011-01-12

Abstract

The invention relates to the technical field of optical and coaxial cable combined network access, in particular to an MOCA terminal for an optical fiber and coaxial cable combined network. The MOCA terminal for the optical fiber and coaxial cable combined network comprises a network interface module for connecting the Ethernet and a bootstrap storage module for storing a bootstrap program, wherein a central processing unit loads the bootstrap program from the bootstrap storage module and is connected the network interface module and an MOCA chip respectively. The MOCA terminal simplifies the complexity of hardware design, increases the reliability of a system, saves the hardware cost of the terminal, and in comparison with the conventional design mode, reduces energy consumption.

Description

The MOCA terminal that is used for optical fiber and coaxial cable hybrid network

Technical field

The present invention relates to optical fiber and coaxial cable hybrid network technical field of access networks, particularly a kind of MOCA terminal that is used for optical fiber and coaxial cable hybrid network.

Background technology

Multimedia over Coax Alliance equipment, i.e. Multimedia over Coax Alliance(MOCA) be present emerging a kind of Ethernet access device.Its access bandwidth is big, and cost is low.Can be by the MOCA technology in HFC(optical fiber and coaxial cable hybrid network) realize having saved the network laid down cost greatly on the network by transmitting cable TV signal and IP traffic simultaneously on the copper uranium cable.MOCA equipment is divided into two kinds of equipment, and first MOCA terminal will be installed in the user family, and it two is MOCA front ends, and dress is installed in places such as field, floor pipe well.

Existing MOCA equipment adopts mode shown in Figure 1 to realize, need by the single-chip microcomputer boot program loads, and since the MOCA chip to ethernet physical layer (Physical Layer, PHY) chip adopts hardware management, can't realize the phy interface configuration of Multi-netmouth PHY and WLAN (wireless local area network) (WIFI) by software, often need to increase switch, or the WIFI router, not only hardware cost increases, and the design power consumption.

Summary of the invention

The invention provides a kind of MOCA terminal that is used for optical fiber and coaxial cable hybrid network, be used to solve existing MOCA terminal hardware cost height, the technical problem of design power consumption.

The technical solution used in the present invention is as follows:

A kind of MOCA terminal that is used for optical fiber and coaxial cable hybrid network, described terminal comprises and is used for the Network Interface Module that is connected with Ethernet, be used to preserve the guiding memory module of boot, central processing module loads boot from the guiding memory module, and central processing module is connected with Network Interface Module and MOCA chip respectively.

As a kind of preferred version, described central processing module be complicated programmable logic device (Complex Programmable Logic Device, CPLD).

As a kind of preferred version, described central processing module is by Media Independent Interface (Media Independent Interface, MII) bus and management data I/O (Management Data Input/Output, MDIO) bus is connected with Network Interface Module, is connected with the MOCA chip by Media Independent Interface bus and management data input/output bus.

As a kind of preferred version, described central processing module is connected with Network Interface Module and MOCA chip respectively by the Media Independent Interface bus, and the MOCA chip is connected with Network Interface Module by the management data input/output bus.

As a kind of preferred version, described Network Interface Module is the Multi-netmouth physical chip.

As a kind of preferred version, described Network Interface Module is a WLAN (wireless local area network) transmission chip.

As a kind of preferred version, described guiding memory module is flash memory (a Flash memory).

The present invention has simplified hardware design complexity, has increased system reliability, has saved the terminal hardware cost, compares with existing design, has reduced energy consumption, and each terminal can be saved about 40% energy consumption.

Description of drawings

Fig. 1 is the structural representation of prior art MOCA terminal;

Fig. 2 is the design drawing of an embodiment of the present invention;

Fig. 3 is the design drawing of the another kind of embodiment of the present invention.

Embodiment

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Be illustrated in figure 1 as the structural representation of prior art MOCA terminal.

In the prior art, MOCA directly is connected by the mode of MII+MDIO with the PHY chip, because the MOCA chip adopts hardware management to Ethernet PHY chip, the technical merit of existing MOCA does not reach can control the requirement of specifying the PHY chip, present MOCA technology can't realize the setting of MOCA to PHY by software mode, all devices all is the MOCA hardware operation, so MOCA can't inside write a program.So can't directly control PHY.

Therefore when needs are connected with Ethernet by Multi-netmouth or WIFI, can't realize the phy interface configuration of Multi-netmouth PHY and WIFI, often need to increase switch by software, or the WIFI router, thereby hardware cost and power consumption increased.

As Fig. 2 is one embodiment of the present of invention.

As shown in Figure 2, it is mutual that the MII bus of MOCA chip and MDIO bus are carried out Ethernet data by CPLD chip and PHY chip, CPLD reads the boot of FLASH memory on the one hand, and pass through the MDIO bus to the MOCA chip, on the other hand, CPLD is by MDIO bus configuration Multi-netmouth PHY chip and WIFI module chip.Because CPLD directly controls the PHY chip, therefore need not to be confined to only to be suitable for single network interface chip, thereby reduced switch or WIFI router, reduced hardware cost and power consumption.

Be illustrated in figure 3 as second embodiment of the present invention.

As shown in Figure 3, the MDIO bus of MOCA chip and the MDIO bus of PHY chip are connected on the CPLD, CPLD reads the boot of FLASH on the one hand and passes through the MDIO bus to the MOCA chip, the MII bus of MOCA directly connects the PHY chip to carry out Ethernet data mutual on the other hand, and CPLD is by MDIO bus configuration Multi-netmouth PHY chip and WIFI module chip simultaneously.

The embodiment that the present invention adopts, owing to adopted CPLD directly to control Multi-netmouth PHY/WIFI module, compared to existing technology, Multi-netmouth switch or WIFI router have been reduced, reduce hardware cost on the one hand, in addition on the one hand, adopted CPLD, its power consumption is lower, therefore can significantly reduce power consumption.

The above only is a preferred implementation of the present invention; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. MOCA terminal that is used for optical fiber and coaxial cable hybrid network, it is characterized in that, described terminal comprises and is used for the Network Interface Module that is connected with Ethernet, be used to preserve the guiding memory module of boot, central processing module loads boot from the guiding memory module, and central processing module is connected with Network Interface Module and MOCA chip respectively.

2. MOCA terminal according to claim 1 is characterized in that, described central processing module is complicated programmable logic device.

3. MOCA terminal according to claim 1, it is characterized in that, described central processing module is connected with Network Interface Module by Media Independent Interface bus and management data input/output bus, is connected with the MOCA chip by Media Independent Interface bus and management data input/output bus.

4. MOCA terminal according to claim 1, it is characterized in that, described central processing module is connected with Network Interface Module and MOCA chip respectively by the Media Independent Interface bus, and the MOCA chip is connected with Network Interface Module by the management data input/output bus.

5. MOCA terminal according to claim 1 is characterized in that, described Network Interface Module is the Multi-netmouth physical chip.

6. MOCA terminal according to claim 1 is characterized in that, described Network Interface Module is a WLAN (wireless local area network) transmission chip.

7. MOCA terminal according to claim 1 is characterized in that, described guiding memory module is a flash memory.